Light-emitting display device

Abstract

A light emitting display device includes: a substrate; a plurality of anodes disposed on the substrate; a pixel defining layer having a plurality of first openings overlapping the plurality of anodes, respectively; the plurality of light-emitting layers are respectively arranged in the plurality of first openings of the pixel defining layer; a cathode disposed on the plurality of light emitting layers and the pixel defining layer; the packaging layer is arranged on the cathode; and a light blocking layer disposed on the encapsulation layer and including a plurality of second openings overlapping the plurality of first openings, respectively. Each of the plurality of first openings is formed in an elliptical shape or an oval shape. Among the plurality of first openings and the plurality of second openings, the first openings and the second openings corresponding to the first openings have different values in the long-axis direction and the short-axis direction that are planar gaps of the first openings in the long-axis direction and the short-axis direction on a plane.

Description

[0001] This application claims the priority of, and all benefits derived from, Korean Patent Application No. 10-2023-0182160, filed on December 14, 2023, the content of which is incorporated herein by reference in its entirety. Technical Field

[0002] The present disclosure relates to a light-emitting display device. Background Art

[0003] A display device is a device that displays an image and includes a liquid crystal display (LCD) and an organic light-emitting diode (OLED) display.

[0004] The display device can be used in various electronic devices such as, for example, mobile phones, navigation devices, digital cameras, e-books, portable game consoles, and various terminals.

[0005] A display device such as, for example, an organic light-emitting display device can have a structure that can be bent or folded using a flexible substrate.

[0006] In some aspects, in a small electronic device such as, for example, a mobile phone, optical elements such as, for example, a camera and an optical sensor are formed in a bezel area around a display area. However, as the size of the display screen increases, the size of the area around the display area gradually decreases. Technologies that allow an optical sensor to be positioned behind the display area are being developed. Summary of the Invention

[0007] The embodiments described herein support a reduction in diffraction patterns that occur when external light is reflected in a high-resolution display device. In some aspects, the embodiments described herein provide a light-emitting display device that supports a reduction in color separation of external light or a diffraction pattern that is constant regardless of angle in a high-resolution display device.

[0008] In some aspects, the embodiments include forming a black light-blocking layer on the front surface of a high-resolution display panel or overlapping a plurality of color filters without forming a light-blocking layer, which can prevent external light from being reflected or transmitted and thus reduce possible diffraction patterns. The embodiments provide a light-emitting display device that can reduce color separation of external light.

[0009] The light-emitting display device according to an embodiment includes: a substrate; a plurality of anodes disposed on the substrate; a pixel defining layer including a plurality of first openings respectively overlapping the plurality of anodes; a plurality of light-emitting layers respectively disposed in the plurality of first openings of the pixel defining layer; a cathode disposed on the plurality of light-emitting layers and the pixel defining layer; a packaging layer disposed on the cathode; and a light-blocking layer disposed on the packaging layer and including a plurality of second openings respectively overlapping the plurality of first openings, wherein: each of the plurality of first openings of the pixel defining layer has an elliptical shape or an oval shape, among the plurality of first openings and the plurality of second openings, the first opening and the second opening corresponding to the first opening are different according to the long-axis direction gap and the short-axis direction gap, the long-axis direction gap and the short-axis direction gap are respectively horizontal gaps in a plane with respect to the long-axis direction and the short-axis direction of the first opening, and the long-axis direction gap is smaller than the short-axis direction gap by a value within a range of 0.1 μm to 2.6 μm.

[0010] The first opening and the second opening corresponding to the first opening may have a horizontal gap in an oblique direction different from the long-axis direction and the short-axis direction, and the horizontal gap in the oblique direction may be different from the long-axis direction gap and the short-axis direction gap.

[0011] The first opening and the second opening overlapping the first opening in a plane may have a horizontal gap within a range of 0 μm to 20 μm.

[0012] The above-mentioned elliptical shape or oval shape of the first opening may have an eccentricity within a range of 0.2 to 0.85.

[0013] The second opening may have an eccentricity within a range of 0 to 0.84.

[0014] The second opening may have a circular shape or a polygonal shape including a square shape.

[0015] The above-mentioned elliptical shape or oval shape of the first opening may include four or more long-axis angles, and the long-axis angles of the above-mentioned elliptical shape or oval shape of the first opening may be arranged at an angular interval of 45 degrees or less.

[0016] The above-mentioned oval shape of the first opening may be a planar shape formed by combining at least two elliptical shapes having different eccentricities.

[0017] The above-mentioned oval shape of the first opening may be a planar shape formed by cutting a first ellipse having a first eccentricity in a first direction, cutting a second ellipse having a second eccentricity in the first direction, and combining the cut portions of the first ellipse and the second ellipse.

[0018] The light-emitting display device according to an embodiment includes: a substrate; a plurality of anodes disposed on the substrate; a pixel defining layer including a plurality of first openings respectively overlapping with the plurality of anodes; a plurality of light-emitting layers respectively disposed in the plurality of first openings of the pixel defining layer; a cathode disposed on the plurality of light-emitting layers and the pixel defining layer; a encapsulation layer disposed on the cathode; and a plurality of color filters respectively corresponding to different colors and disposed on the encapsulation layer, wherein: the plurality of color filters include: at least two color filters overlapping with a light-blocking region; and one color filter overlapping with a light-transmitting region, each of the plurality of first openings of the pixel defining layer has an elliptical shape or an oval shape, the light-blocking regions of the plurality of color filters have a plurality of second openings corresponding to the light-transmitting regions of the plurality of color filters, among the plurality of first openings and the plurality of second openings, the first opening and the second opening corresponding to the first opening are different according to a major-axis direction gap and a minor-axis direction gap, the major-axis direction gap and the minor-axis direction gap are horizontal gaps in a plane with respect to the major-axis direction and the minor-axis direction of the first opening respectively, and the major-axis direction gap is smaller than the minor-axis direction gap by a value in the range of 0.1 micrometer to 2.6 μm.

[0019] The first opening and the second opening corresponding to the first opening may have a horizontal gap in an oblique direction different from the major-axis direction and the minor-axis direction, and the horizontal gap in the oblique direction may be different from the major-axis direction gap and the minor-axis direction gap.

[0020] The first opening and the second opening overlapping with the first opening in a plane may have a horizontal gap in the range of 0 μm to 20 μm.

[0021] The above-mentioned elliptical shape or oval shape of the first opening may have an eccentricity in the range of 0.2 to 0.85.

[0022] The second opening may have an eccentricity in the range of 0 to 0.84.

[0023] The second opening may have a circular shape or a polygonal shape including a quadrilateral shape.

[0024] The above-mentioned elliptical shape or oval shape of the first opening may include four or more major-axis angles, and the major-axis angles of the above-mentioned elliptical shape or oval shape of the first opening may be arranged at an angle interval of 45 degrees or less.

[0025] The above-mentioned oval shape of the first opening may be a planar shape formed by combining at least two elliptical shapes having different eccentricities.

[0026] The above-mentioned oval shape of the first opening may be a planar shape formed by cutting a first ellipse having a first eccentricity in a first direction, cutting a second ellipse having a second eccentricity in the first direction, and combining the cut portion of the first ellipse and the cut portion of the second ellipse.

[0027] According to an embodiment, in a high-resolution display device, a black pixel defining layer that separates light-emitting layers from each other is used instead of a polarizer, thereby reducing the ratio of external light reflected and thus reducing diffraction patterns.

[0028] According to an embodiment, in a high-resolution display device, the horizontal gap between the oval opening of the pixel defining layer and the overlapping opening of the light blocking layer or color filter is not constant, and the major axis gap is made relatively narrow to ensure the gap between adjacent openings, which can reduce the reflection and diffraction of external light while preventing problems during processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a schematic perspective view showing a usage state of a display device according to an embodiment.

[0030] Figure 2 is an exploded perspective view of a display device according to an embodiment.

[0031] Figure 3 is a block diagram of a display device according to an embodiment.

[0032] Figure 4 is a perspective view schematically showing a light-emitting display device according to another embodiment.

[0033] Figure 5 is an enlarged plan view of a partial area of a light-emitting display device according to an embodiment.

[0034] Figure 6 is a schematic cross-sectional view of a display panel according to an embodiment.

[0035] Figure 7 and Figure 8 is a plan view of a part of a display panel according to an embodiment.

[0036] Figure 9 and Figure 10 is a plan view of a part of a display panel according to a comparative example.

[0037] Figure 11 is a table summarizing the gaps of the embodiment and the comparative example.

[0038] Figure 12 clearly shows Figure 11 the gap in

[0039] Figure 13It is a table listing the gap and eccentricity ranges according to the embodiments.

[0040] Figure 14 It is a table of the luminance ratio versus viewing angle according to the gap in the simulation comparison examples.

[0041] Figures 15 to 17 It is a plan view of a part of a display panel according to an embodiment.

[0042] Figure 18 It is a plan view of a part of a display panel according to the comparative example.

[0043] Figure 19 It is Figures 15 to 17 of the embodiment and Figure 18 a photograph of the reflection characteristics of the comparative example.

[0044] Figure 20 It is a graph showing the angle-dependent reflection characteristics of the light-emitting display device.

[0045] Figure 21 It is a graph showing various angular arrangements according to an embodiment.

[0046] Figure 22 It is a photograph of the reflection characteristics according to the angle.

[0047] Figure 23 and Figure 24 It is a graph showing the reflection characteristics according to the eccentricity.

[0048] Figure 25 and Figure 26 It is a graph showing the structure of combining ellipses having different eccentricities.

[0049] Figure 27 It is a plan view of a part of a display panel according to another embodiment.

[0050] Figure 28 It is a plan view of a part of a display panel according to another embodiment.

[0051] Figure 29 It is a plan view showing the configuration of a unit pixel in one of the display panels according to an embodiment.

[0052] Figure 30 and Figure 31 It is a plan view of a part of a display panel according to another embodiment.

[0053] Figure 32 It is a plan view of a display area including color filters according to an embodiment.

[0054] Figure 33 and Figure 34Schematic cross-sectional view of a display panel according to another embodiment.

[0055] Figure 35 Planar view showing a color filter in a display area according to another embodiment.

[0056] Figure 36 Planar view of a part of a display panel according to another embodiment.

[0057] Figure 37 Graph showing the transmittance according to the wavelength of the color filter.

[0058] Figure 38 and Figure 39 Cross-sectional view of a light-emitting display device according to an embodiment.

[0059] <Description of reference numerals>

[0060] 220: Light-blocking layer 380: Pixel-defining layer OP, OPr, OPg, OPb: Openings of the pixel-defining layer

[0061] OPBM, OPBMr, OPBMg, OPBMb: Second openings of the light-blocking layer

[0062] 230R, 230G, 230B: Color filters

[0063] OPCF, OPCFr, OPCFg, OPCFb: Second openings of the light-blocking region Anode: Anode Cathode: Cathode

[0064] EML, EMLr, EMLg: Light-emitting layer FL: Functional layer

[0065] 1000: Display device DP: Display panel

[0066] 110: Substrate 180, 181, 182, 183: Organic layers

[0067] 141, 142, 143: Gate insulating layers

[0068] 161, 162: Interlayer insulating layers

[0069] 385, 385-1, 385-2: Spacers 400, 401, 402, 403: Encapsulation layers

[0070] 501, 510, 511: Sensing insulating layers

[0071] 540, 541: Sensing electrodes

[0072] 550: Planarization layer DA, DA1-1, DA1-2: Display areas

[0073] EA, EA1, EA2: Component regions

[0074] gap, gap’: Clearance

[0075] gap1, gap1’: Clearance in the major axis direction

[0076] gap2, gap2’: Clearance in the minor axis direction

[0077] OP-1, OPBM-1, OPCF-1: Additional openings Detailed implementation manners

[0078] In the following, various embodiments will be described in detail with reference to the accompanying drawings, so that those skilled in the art can easily implement the embodiments supported by the present disclosure.

[0079] The present invention can be implemented in many different forms and is not limited to the embodiments described herein.

[0080] To clearly explain the exemplary embodiments supported by the present disclosure, parts irrelevant to the description are omitted, and throughout the specification, the same or similar components are assigned the same reference numerals.

[0081] In some aspects, for ease of explanation, the dimensions and thicknesses of each component shown in the drawings are arbitrarily shown, and the exemplary embodiments are not necessarily limited to the dimensions and thicknesses shown.

[0082] In the drawings, the thicknesses are enlarged to clearly show different layers and regions.

[0083] Moreover, in the drawings, for ease of explanation, the thicknesses of some layers and regions are exaggerated.

[0084] In some aspects, when a part such as, for example, a layer, a film, a region, a plate, or a component is referred to as being "above" or "on" another part, this means not only when the part is "directly above" the other part, but also when there is an intermediate part between the part and the other part.

[0085] Conversely, when a part is referred to as being "directly above" another part, this means that there are no other parts between the part and the other part.

[0086] In some aspects, being "above" or "on" a reference part means being located above or below the reference part, and does not necessarily mean being "above" or "on" the reference part in the direction opposite to gravity.

[0087] In some aspects, throughout the specification, when a part is referred to as "including" a certain element, this means that the part may further include other elements rather than excluding other elements, unless there is a specific contrary statement.

[0088] In some aspects, throughout the specification, when referring to "in a plane", this means viewing the target part from above, and when referring to "in a cross-section", this means when the cross-section of the target part is vertically cut and viewed from the side.

[0089] In some aspects, throughout the specification, when using "connected", this not only means when two or more components are directly connected, but also means when two or more components are indirectly connected through other components, and they are physically connected, which can not only include cases of connection or electrical connection, but also include cases where individual parts that are substantially integral with each other are connected to each other although they are referred to by different names depending on their positions or functions.

[0090] In some aspects, throughout the specification, when a part such as, for example, a wiring, a layer, a film, a region, a plate or a component is referred to as "extending in a first direction or a second direction", this not only means a linear shape extending in that direction, but also means a structure that extends as a whole along the first direction or the second direction and is bent at some parts, has a zigzag structure, or extends while including an arc structure.

[0091] Embodiments supported by the present disclosure will now be more fully described hereinafter with reference to the drawings showing one or more exemplary embodiments. However, aspects supported by the present disclosure may be embodied in different forms and should not be construed as limited to the embodiments set forth herein. Rather, these exemplary embodiments are provided so that the present disclosure will be thorough and complete, and will fully convey the scope of the exemplary aspects of the present invention to those skilled in the art.

[0092] Terms such as, for example, "first" and "second" may be used to describe various components, but these components should not be limited by these terms. These terms used herein may distinguish one component from other components and are not intended to limit these components. For example, a first component may be referred to as a second component, and similarly, a second component may also be referred to as a first component, without departing from the scope of the present disclosure. The singular form of a term may include the plural form unless otherwise stated.

[0093] The terms used in this specification are for the purpose of describing particular embodiments only and are not intended to be limiting. As used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. For example, the term "an element" is intended to have the same meaning as "at least one element", unless the context clearly indicates otherwise. The phrase "at least one" is not to be construed as limited to "one". "Or" means "and / or". As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items. It will be further understood that when used in this specification, the terms "comprises" and / or "comprising", or "has" and / or "having", specify the presence of stated features, regions, wholes, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, regions, wholes, steps, operations, elements, components, and / or groups thereof.

[0094] For ease of description, spatial relative terms such as "below", "beneath", "lower", "above", and "upper" may be used herein to describe the relationship of one element or feature to another (other) element or feature as illustrated in the figures. It will be understood that the spatial relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, an element described as "below" or "beneath" other elements or features will then be oriented "above" the other elements or features. Thus, the term "below" can encompass both an orientation above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations), and the spatial relative descriptors used herein should be interpreted accordingly.

[0095] In this document, embodiments are described with reference to cross-sectional views of schematic illustrations of example embodiments. Accordingly, variations in the illustrated shapes due to, for example, manufacturing techniques and / or tolerances are to be expected. Thus, the embodiments described herein are not to be construed as limited to the particular shapes of regions shown herein, but are to include, for example, deviations in shapes due to manufacturing. For example, regions shown or described as flat will generally have rough and / or non-linear features. Additionally, sharp corners shown may be rounded. Thus, the regions shown in the figures are schematic in nature, and their shapes are not intended to show the exact shape of regions and are not intended to limit the scope of the present claims.

[0096] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. It will be further understood that terms such as those defined in commonly used dictionaries should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and this disclosure, and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

[0097] It should be understood that the various embodiments of the present disclosure and the terms used therein are not intended to limit the technical features set forth herein to a particular embodiment, but include various changes, equivalents, or alternatives of the corresponding embodiments. With respect to the description of the drawings, like reference numerals may be used to refer to like or related elements. It should be understood that the singular form of a noun corresponding to an item may include one or more of such item unless the relevant context clearly indicates otherwise. As used herein, each of the phrases such as "A or B", "at least one of A and B", "A, B, or C", and "at least one of A, B, and C" may include any one or all possible combinations of the items listed together in the respective phrases.

[0098] It should be understood that, with or without the terms "operatively" or "communicatively", if an element (e.g., a first element) is referred to as being "coupled" or "connected" or "couples to" or "connects to" another element (e.g., a second element), this means that the element can be directly (e.g., wired) coupled to, wirelessly coupled to, or coupled to the other element via a third element.

[0099] Taking into account the measurements discussed and the errors associated with the measurement of a particular quantity, the term "about" or "approximate" as used herein includes the recited value and includes a suitable deviation range for that particular value determined by one of ordinary skill in the art. For example, the term "about" may mean within one or more standard deviations, or within ±30%, ±20%, ±10%, ±5% of the recited value.

[0100] As used herein, the term "substantially" means approximate or substantial. The term "substantially equal" means approximately equal or substantially equal. The term "substantially the same" means approximately the same or substantially the same. The term "substantially perpendicular" means approximately perpendicular or substantially perpendicular. The term "substantially parallel" means approximately parallel or substantially parallel.

[0101] In some aspects, an electronic device including a display device, a display panel, etc. described in this specification (e.g., a mobile phone, a TV, a monitor, a laptop computer, etc.) or a display device, a display panel, etc. manufactured by the manufacturing method described in the specification is not excluded from the scope of rights described in the specification.

[0102] Hereinafter, Figures 1 to 3 describe aspects of the schematic structure of the display device.

[0103] Figure 1 is a schematic perspective view showing a usage state of a display device according to an embodiment, Figure 2 is an exploded perspective view of a display device according to an embodiment, and Figure 3 is a block diagram of a display device according to an embodiment.

[0104] Refer to Figure 1 , the display device 1000 according to an embodiment is a device that displays moving images or still images, and can be used in a mobile phone, a smart phone, or a tablet personal computer. The display device 1000 can be used as a display screen for various products such as, for example, portable electronic devices (such as, for example, communication terminals, electronic notebooks, e-books, portable multimedia players (PMPs), navigation devices, ultra-mobile PCs (UMPCs)), as well as TVs, laptop computers, monitors, billboards, and Internet of Things (IoT) devices.

[0105] In some aspects, the display device 1000 according to an embodiment can be installed in wearable devices such as, for example, smart watches, watch phones, glasses-type displays, and head-mounted displays (HMDs).

[0106] In addition, the display device 1000 according to an embodiment can be used as a dashboard of a vehicle, and can be used as a central information display (CID) provided on the center console or dashboard of the vehicle, an in-vehicle mirror display replacing a vehicle side mirror, and a display provided on the back of the front seat as an entertainment facility for the rear seat of the vehicle.

[0107] For ease of explanation, Figure 1 shows the display device 1000 used as a smart phone.

[0108] The display device 1000 can display an image in a third direction DR3 on a display surface parallel to each of a first direction DR1 and a second direction DR2.

[0109] The display surface on which the image is displayed can correspond to the front surface of the display device 1000 and the front surface of the cover window WU.

[0110] The image can include a still image and a moving image.

[0111] In an embodiment, the front (or top) surface and the rear (or bottom) surface of each component are defined based on the orientation of the displayed image.

[0112] The front surface and the rear surface are opposite to each other in the third direction DR3, and the normal direction of each of the front surface and the rear surface may be parallel to the third direction DR3.

[0113] The distance between the front surface and the rear surface in the third direction DR3 may correspond to the thickness of the display panel in the third direction DR3.

[0114] The display device 1000 according to an embodiment may detect a user input applied from the outside (refer to the hand in Figure 1 ).

[0115] The user input may include various types of external inputs such as, for example, a part of the user's body, light, heat, or pressure.

[0116] In an embodiment, the user input is shown as the hand of the user applied to the front surface.

[0117] However, the embodiments of the present disclosure are not limited thereto.

[0118] The user input may be provided in various forms, and depending on the structure of the display device 1000, the display device 1000 may also detect a user input applied to the side or the back of the display device 1000.

[0119] Refer to Figure 1 and Figure 2 , the display device 1000 may include a cover window WU, a housing HM, a display panel DP, and an optical element ES.

[0120] In an embodiment, the cover window WU and the housing HM may be combined to form the appearance of the display device 1000.

[0121] The cover window WU may include an insulating panel.

[0122] For example, the cover window WU may be formed of glass, plastic, or a combination thereof.

[0123] The front surface of the cover window WU may define the front surface of the display device 1000.

[0124] The transmissive area TA may be an optically transmissive area.

[0125] For example, the transmissive area TA may be an area having a visible light transmittance of about 90% or more.

[0126] The blocking area BA may define the shape of the transmissive area TA.

[0127] The blocking region BA is adjacent to the transmissive region TA and can surround the transmissive region TA.

[0128] The blocking region BA can be a region having a relatively low light transmittance compared to the transmissive region TA.

[0129] The blocking region BA can include an opaque material that blocks light.

[0130] The blocking region BA can have a predetermined color.

[0131] The blocking region BA can be defined by a border layer provided separately from the transparent substrate that defines the transmissive region TA, or can be defined by an ink layer formed by inserting into or coloring the transparent substrate.

[0132] The display panel DP can include a driver 50 and pixels PX that display an image, and the pixels PX are located in the display region DA and the component region EA.

[0133] The display panel DP can include a front surface including the display region DA, the component region EA, and the peripheral region PA.

[0134] In an embodiment, the display region DA and the component region EA are regions that include the pixels PX and display an image, and at the same time, the display region DA and the component region EA can be regions that detect an external input using a touch sensor located in the third direction DR3 of the pixels PX.

[0135] The transmissive region TA of the cover window WU can at least partially overlap with the display region DA and the component region EA of the display panel DP.

[0136] For example, the transmissive region TA can overlap with the front surface of the display region DA and the component region EA, or can overlap with at least a part of the display region DA and the component region EA.

[0137] Accordingly, a user can view an image through the transmissive region TA, or can provide an external input based on the image.

[0138] However, embodiments of the present disclosure are not limited thereto.

[0139] For example, the region for displaying an image and the region for detecting an external input can be separated from each other.

[0140] The peripheral region PA of the display panel DP can at least partially overlap with the blocking region BA of the cover window WU.

[0141] The peripheral region PA can be a region covered by the blocking region BA.

[0142] The peripheral area PA is adjacent to the display area DA and can surround the display area DA.

[0143] In the peripheral area PA, no image is displayed, and a driving circuit or driving wiring for driving the display area DA can be provided.

[0144] The peripheral area PA can include a first peripheral area PA1 located outside the display area DA and a second peripheral area PA2 including a driver 50, connection wirings, and a bending area.

[0145] In Figure 2 the embodiment, the first peripheral area PA1 is located on three sides of the display area DA, and the second peripheral area PA2 is located on the remaining side of the display area DA.

[0146] In an embodiment, the display panel DP can be assembled in a flat state in which the display area DA, the component area EA, and the peripheral area PA face the cover window WU.

[0147] However, embodiments of the present disclosure are not limited thereto.

[0148] A part of the peripheral area PA of the display panel DP can be curved.

[0149] At this time, a part of the peripheral area PA points to the back surface of the display device 1000, so that the blocking area BA visible on the front surface of the display device 1000 can be reduced, and in Figure 2 the second peripheral area PA2 can be bent and placed on the back surface of the display area DA and then assembled.

[0150] In some aspects, the component area EA of the display panel DP can include a first component area EA1 and a second component area EA2.

[0151] The first component area EA1 and the second component area EA2 can be at least partially surrounded by the display area DA.

[0152] The first component area EA1 and the second component area EA2 are shown as being spaced apart from each other, but are not limited thereto, and can be at least partially connected.

[0153] The first component area EA1 and the second component area EA2 can be areas where optical elements (see ES in Figure 2 ) that use infrared light, visible light, or sound are provided; hereinafter referred to as components.

[0154] The display area DA (hereinafter, also referred to as the main display area) and the component area EA are formed of a plurality of light-emitting diodes and a plurality of pixel circuit units that generate a light-emitting current and transmit it to each of the plurality of light-emitting diodes. In the embodiments described herein, the display device may also be referred to as a light-emitting display device, and the display panel may also be referred to as a light-emitting display panel.

[0155] Here, one light-emitting diode and one pixel circuit unit are referred to as a pixel PX.

[0156] One pixel circuit unit and one light-emitting diode may be formed in the display area DA and the component area EA in a one-to-one ratio.

[0157] The first component area EA1 may include a transparent portion (e.g., an optical sensor area to be described later) through which light and / or sound can pass, and a display portion including a plurality of pixels PX.

[0158] The transmissive portion is located between adjacent pixels PX and is composed of a layer through which light and / or sound can pass.

[0159] The transmissive portion may be located between adjacent pixels PX, and based on the embodiment, a light-blocking layer such as a light-blocking layer may overlap with the first component area EA1.

[0160] The number of pixels per unit area (hereinafter, also referred to as the resolution) of the pixels PX included in the display area DA (hereinafter, also referred to as normal pixels) and the pixels PX included in the first component area EA1 (hereinafter, also referred to as first component pixels) may be the same.

[0161] The second component area EA2 includes an area formed of a transparent layer so that light can pass through (hereinafter, also referred to as a light-transmissive area), and the light-transmissive area does not have a conductive layer or a semiconductor layer and may have a structure that does not block light by including an opening overlapping the position corresponding to the second component area EA2 in a layer including a light-blocking material (e.g., a pixel defining layer and / or a light-blocking layer).

[0162] The number of pixels per unit area of the pixels PX included in the second component area EA2 (hereinafter, also referred to as second component pixels) may be less than the number of pixels per unit area of the normal pixels included in the display area DA.

[0163] As a result, the resolution of the second component pixels may be lower than the resolution of the normal pixels.

[0164] According to an embodiment, instead of a light-blocking layer, at least two color filters may overlap to form a light-blocking area that can block light in a specific wavelength range (e.g., visible light, etc.).

[0165] Reference Figure 3 , in addition to the display area DA including the pixels PX, the display panel DP may further include a touch sensor TS.

[0166] The display panel DP includes pixels PX that are components for generating an image, and the generated image can be visible to a user from the outside through the transmissive area TA.

[0167] In some aspects, the touch sensor TS may be located on top of the pixels PX and may detect an external input applied from the outside.

[0168] The touch sensor TS may detect an external input provided to the cover window WU.

[0169] Referring again to Figure 2 , the second peripheral area PA2 may include a bending area.

[0170] The display area DA and the first peripheral area PA1 may be in a flat state substantially parallel to the plane defined by the first direction DR1 and the second direction DR2, and the second peripheral area PA2 may extend from the flat state, pass through the bending area, and then be in a flat state again.

[0171] As a result, at least a part of the second peripheral area PA2 may be bent and assembled to be located on the rear surface of the display area DA.

[0172] When at least a part of the second peripheral area PA2 is assembled, at least a part of the second peripheral area PA2 overlaps the display area DA in a plane, and thus the blocking area BA of the display device 1000 can be reduced.

[0173] However, embodiments of the present disclosure are not limited thereto.

[0174] For example, the second peripheral area PA2 may not be bent.

[0175] The driver 50 may be mounted in the second peripheral area PA2, mounted in the bending area, or located on one side of the two sides of the bending area.

[0176] The driver 50 may be provided in the form of a chip.

[0177] The driver 50 is electrically connected to the display area DA and the component area EA, and may transmit an electrical signal to the pixels PX in the display area DA and the component area EA.

[0178] For example, the driver 50 may provide a data signal to the pixels PX arranged in the display area DA.

[0179] Alternatively, the driver 50 may include a touch driving circuit and may be electrically connected to a touch sensor TS disposed in the display area DA and / or the component area EA.

[0180] In some embodiments, the driver 50 may include various circuits in addition to the above-described circuits, or may be designed to provide various electrical signals to the display area DA.

[0181] In some embodiments, the display device 1000 may have a pad portion located at the end of the second peripheral area PA2 and may be electrically connected to a flexible printed circuit board (FPCB) including a driving chip through the pad portion.

[0182] Here, the driving chip located on the flexible printed circuit board may include various driving circuits for driving the display device 1000 or connectors for power supply.

[0183] Based on the embodiment, a rigid printed circuit board (PCB) may be used instead of the flexible printed circuit board.

[0184] The optical element ES may be disposed under the display panel DP.

[0185] The optical element ES may include a first optical element ES1 overlapping with the first component area EA1 and a second optical element ES2 overlapping with the second component area EA2.

[0186] The first optical element ES1 may use infrared light, and in this case, a light-blocking layer such as a light-blocking layer may overlap with the first component area EA1.

[0187] The first optical element ES1 may be an electronic element using light or sound.

[0188] For example, the first optical element ES1 is a sensor that receives and uses light such as an infrared sensor, a sensor that outputs and detects light or sound to measure distance or identify fingerprints, etc., a small lamp that outputs light, or a speaker that outputs sound.

[0189] In the case of an electronic element using light, it goes without saying that various bands of light such as visible light, infrared light, and ultraviolet light may be used.

[0190] The second optical element ES2 is at least one of a camera (e.g., an IR camera), a dot projector, an IR illuminator, and a time-of-flight photoelectric sensor.

[0191] Reference Figure 3 , the display device 1000 may include a display panel DP, a power module PM, a first electronic module EM1, and a second electronic module EM2.

[0192] The display panel DP, the power supply module PM, the first electronic module EM1, and the second electronic module EM2 can be electrically connected to each other.

[0193] Figure 3 Shown are the pixel PX and the touch sensor TS located in the display area DA among the configurations of the display panel DP.

[0194] The power supply module PM can supply power for powering the overall operation of the display device 1000.

[0195] The power supply module PM can include a conventional battery module.

[0196] The first electronic module EM1 and the second electronic module EM2 can include various functional modules for operating the display device 1000.

[0197] The first electronic module EM1 can be directly mounted on the main board electrically connected to the display panel DP, or can be mounted on a separate board and electrically connected to the main board through a connector (not shown).

[0198] The first electronic module EM1 can include a control module CM, a wireless communication module TM, an image input module IIM, an audio input module AIM, a memory MM, and an external interface IF.

[0199] Some of these modules can be not mounted on the main board, but can be electrically connected to the main board through a flexible printed circuit board connected thereto.

[0200] The control module CM can control the overall operation of the display device 1000.

[0201] The control module CM can be a microprocessor.

[0202] For example, the control module CM activates or deactivates the display panel DP.

[0203] The control module CM can control other modules such as, for example, the image input module IIM or the audio input module AIM based on the touch signal received from the display panel DP.

[0204] The wireless communication module TM can send wireless signals to other terminals and receive wireless signals from other terminals using Bluetooth or Wi-Fi lines.

[0205] The wireless communication module TM can use a general communication line to send / receive voice signals.

[0206] The wireless communication module TM includes a transmitter TM1 that modulates and sends the signal to be sent and a receiver TM2 that demodulates the received signal.

[0207] The Image Input Module (IIM) can process video signals and convert them into video data that can be displayed on the Display Panel (DP).

[0208] The Audio Input Module (AIM) can receive external audio signals through a microphone in recording mode, speech recognition mode, etc., and convert them into electronic voice data.

[0209] The External Interface (IF) can be used as an interface for connecting to an external charger, wired / wireless data port, card (e.g., memory card, SIM / UIM card) slot, etc.

[0210] The Second Electronic Module (EM2) can include an Audio Output Module (AOM), a Light Emitting Module (LM), a Light Receiving Module (LRM), and a Camera Module (CMM) (at least some of these modules include optical elements (ES)), and the Second Electronic Module (EM2) can be located on the back of the Display Panel (DP), as Figure 2 shown.

[0211] The optical elements (ES) can include the Light Emitting Module (LM), the Light Receiving Module (LRM), and the Camera Module (CMM).

[0212] In some aspects, the Second Electronic Module (EM2) is directly mounted on the main board, or mounted on a separate board and electrically connected to the Display Panel (DP) through a connector (not shown), or connected to the First Electronic Module (EM1).

[0213] The Audio Output Module (AOM) can convert the audio data received from the Wireless Communication Module (TM) or the audio data stored in the Memory Module (MM), and can output sound to the outside.

[0214] The Light Emitting Module (LM) can generate and output light.

[0215] The Light Emitting Module (LM) can output infrared light.

[0216] For example, the Light Emitting Module (LM) can include LED devices.

[0217] For example, the Light Receiving Module (LRM) can detect infrared light.

[0218] When infrared light above a specific level is detected, the Light Receiving Module (LRM) can be activated.

[0219] The Light Receiving Module (LRM) can include a CMOS sensor.

[0220] After the infrared light generated in the Light Emitting Module (LM) is output, the infrared light is reflected by an external object (e.g., the user's finger or face), and the reflected infrared light can be incident on the Light Receiving Module (LRM).

[0221] The Camera Module (CMM) can capture external images.

[0222] In an embodiment, the optical element ES may additionally include a light detection sensor or a thermal detection sensor.

[0223] The optical element ES may detect an external object received through the front surface, or may provide a sound signal such as, for example, voice to the outside through the front surface.

[0224] In some aspects, the optical element ES may include a plurality of components and is not limited to any one embodiment.

[0225] Referring again to Figure 2 , the housing HM may be combined with the cover window WU.

[0226] The cover window WU may be provided in front of the housing HM.

[0227] The housing HM may be combined with the cover window WU to provide a predetermined accommodation space.

[0228] The display panel DP and the optical element ES may be accommodated in the predetermined accommodation space provided between the housing HM and the cover window WU.

[0229] The housing HM may include a material having relatively high rigidity.

[0230] For example, the housing HM may include a plurality of frames and / or plates formed of glass, plastic, or metal, or a combination thereof.

[0231] The housing HM may stably protect the components accommodated in the internal space of the display device 1000 from external impacts.

[0232] Hereinafter, the structure of the display device 1000 according to another embodiment will be described with reference to Figure 4 FIG.

[0233] Figure 4 is a perspective view schematically showing a light-emitting display device according to another embodiment.

[0234] Descriptions of components that are the same as those described herein will be omitted, and Figure 4 the embodiment of

[0235] Referring to Figure 4 , in an embodiment, the display device 1000 may be a foldable display device.

[0236] The display device 1000 may be folded outward or inward based on the folding axis FAX.

[0237] When folded outwards based on the folding axis FAX, the display surface of the display device 1000 is positioned on the outer side in the third direction DR3, such that images can be displayed in two directions.

[0238] If the display device 1000 is folded inwards based on the folding axis FAX, the display surface may be invisible from the outside.

[0239] In an embodiment, the display device 1000 may include a display area DA, a component area EA, and a peripheral area PA.

[0240] The display area DA may be divided into a 1-1 display area DA1-1, a 1-2 display area DA1-2, and a folding area FA.

[0241] The 1-1 display area DA1-1 and the 1-2 display area DA1-2 may be respectively located on the left and right sides based on (or centered on) the folding axis FAX, and the folding area FA may be located between the 1-1 display area DA1-1 and the 1-2 display area DA1-2.

[0242] At this time, when folded outwards based on the folding axis FAX, the 1-1 display area DA1-1 and the 1-2 display area DA1-2 are located on both sides in the third direction DR3, which allows images to be displayed in two directions.

[0243] In some aspects, when folded inwards based on the folding axis FAX, the 1-1 display area DA1-1 and the 1-2 display area DA1-2 may be invisible from the outside.

[0244] Figure 5 Is an enlarged plan view of a partial area of a light-emitting display device according to an embodiment.

[0245] Figure 5 Shows a part of the light-emitting display panel DP of a light-emitting display device according to an embodiment, and is shown using a display panel for a mobile phone.

[0246] The display area DA is located in front of the light-emitting display panel DP, and the component area EA is also located within the display area DA.

[0247] Specifically, the component area EA may include a first component area EA1 and a second component area EA2.

[0248] In some aspects, in Figure 5 In an embodiment, the first component area EA1 is located adjacent to the second component area EA2.

[0249] In Figure 5 In an embodiment, the first component area EA1 is located on the left side of the second component area EA2.

[0250] The position and number of the first component area EA1 can be changed based on the embodiments.

[0251] In Figure 5 , the second optical element corresponding to the second component area EA2 (see ES2 in Figure 2 ) can be a camera, and the first optical element corresponding to the first component area EA1 (see ES1 in Figure 2 ) can be an optical sensor.

[0252] The display area DA is formed with a plurality of light-emitting diodes and a plurality of pixel circuit units that generate a light-emitting current and transmit it to each of the plurality of light-emitting diodes.

[0253] Here, one light-emitting diode and one pixel circuit unit are referred to as a pixel (see PX in Figure 2 ).

[0254] In the display area DA, one pixel circuit unit and one light-emitting diode are formed in a one-to-one arrangement.

[0255] The display area DA is also referred to as the "normal display area" hereinafter.

[0256] Although the structure of the light-emitting display panel DP below the cutting line is not shown in Figure 5 , the display area DA can be further located below the cutting line.

[0257] The light-emitting display panel DP according to the embodiments can be mainly divided into a lower panel layer and an upper panel layer.

[0258] The lower panel layer is the part where the light-emitting diodes and pixel circuit units constituting the pixels are located, and may even include a packaging layer covering the light-emitting diodes (see 400 in Figure 6 ).

[0259] That is to say, the lower panel layer can include an anode (see Anode in Figure 6 ), a pixel defining layer (see 380 in Figure 6 ), a light-emitting layer (see EML in Figure 6 ) and a spacer (see 385 in Figure 6 ) from the substrate (see 110 in Figure 6 ). The lower panel layer may also include a functional layer (see FL in Figure 6 ), a cathode (see Cathode in Figure 6 ), and an insulating layer, a semiconductor layer, and a conductive layer between the substrate and the anode.

[0260] In some embodiments, the upper panel layer is the portion located above the encapsulation layer and includes a sensing insulating layer (see 501, 510, and 511 in Figure 6 ) and a plurality of sensing electrodes capable of detecting touch (see 540 and 541 in Figure 6 ), and may further include a light-blocking layer (see 220 in Figure 6 ), a color filter (see 230 in Figure 6 ), and a planarization layer (see 550 in Figure 6 ).

[0261] The first component region EA1 may include a transparent layer that allows light to pass through, may not include a conductive layer or a semiconductor layer to allow light to pass through, and may have an optical sensor region in the lower panel layer. In some aspects, openings (hereinafter referred to as additional openings) are formed at positions corresponding to the first component region EA1 in the pixel definition layer of the lower panel layer and the light-blocking layer and color filter layer of the upper panel layer, so that the first component region EA1 may have a structure that does not block light.

[0262] In some embodiments, even if the optical sensor region is located in the lower panel layer, if there is no corresponding opening in the upper panel layer, the region in the lower panel layer where the optical sensor region is located and there is no corresponding opening in the upper panel layer may be the display region DA instead of the first component region EA1.

[0263] One first component region EA1 may include a plurality of adjacent optical sensor regions, and in this case, the pixels adjacent to the optical sensor regions may be included in the first component region EA1.

[0264] In some embodiments, for the case where infrared light instead of visible light is used for the first optical element ES1 corresponding to the first component region EA1, the first component region EA1 overlaps with the light-blocking layer 220 that blocks visible light.

[0265] The second component region EA2 may include second component pixels and a light-transmitting region, and the space between adjacent second component pixels may be a light-transmitting region.

[0266] Although not shown in Figure 5 , the peripheral region may further be located outside the display region DA.

[0267] In some aspects, although Figure 5 shows a display panel for a mobile phone, such embodiments can be applied to any display panel in which an optical element can be located on the back of the display panel, and the display device can also be a flexible display device.

[0268] In the case of a foldable display device among flexible display devices, the second component area EA2 and the first component area EA1 may be formed at positions different from those of Figure 5 the positions.

[0269] Hereinafter, the structure of the light-emitting display panel DP according to an embodiment will be described with reference to Figure 6 the description.

[0270] Figure 6 is a schematic cross-sectional view of a display panel according to an embodiment.

[0271] The light-emitting display panel DP according to an embodiment may display an image by forming light-emitting diodes on a substrate 110 and may detect a touch by including a plurality of sensing electrodes 540 and 541, and light emitted from the light-emitting diodes has the color characteristics of color filters 230R, 230G, and 230B by including a light-blocking layer 220 and color filters 230R, 230G, and 230B.

[0272] In some aspects, a polarizer is not formed on the front surface of the light-emitting display panel DP according to an embodiment. Instead, for example, a pixel definition layer 380 is formed of a black organic material, and the light-blocking layer 220 and the color filters 230 are formed on top, so that even if external light enters the interior, the light is not reflected from the anode Anode or the like and transmitted to the user.

[0273] The detailed features of the light-emitting display panel DP according to an embodiment are as follows.

[0274] The substrate 110 may include a material having a rigid property such as glass and not being bendable, or may include a bendable flexible material such as plastic or polyimide.

[0275] A plurality of thin-film transistors are formed on the substrate 110, but they are omitted in Figure 6 and only the organic layer 180 covering the thin-film transistors is shown.

[0276] One pixel is formed of a light-emitting diode and a pixel circuit unit in which a plurality of transistors and capacitors are formed to transmit a light-emitting current to the light-emitting diode.

[0277] In Figure 6 the pixel circuit unit is not shown, and the structure of the pixel circuit unit may be changed based on the embodiment.

[0278] Figure 6 In

[0279] the organic layer 180 covering the pixel circuit unit is first shown.

[0280] The anode can be composed of a single layer including a transparent conductive oxide film or a metal material, or multiple layers including a transparent conductive oxide film and a metal material.

[0281] The transparent conductive oxide film can include indium tin oxide (ITO), polycrystalline ITO, indium zinc oxide (IZO), indium gallium zinc oxide (IGZO), and indium tin zinc oxide (ITZO), and the metal material can include silver (Ag), molybdenum (Mo), copper (Cu), gold (Au), and aluminum (Al).

[0282] The emission layer EML can be formed of an organic light-emitting material, and adjacent emission layers EML can display different colors.

[0283] In some aspects, based on the embodiments, due to the top color filters 230R, 230G, and 230B, each emission layer EML can emit light of the same color.

[0284] Based on the embodiments, the emission layer EML can have a structure in which multiple emission layers are stacked (also referred to as a tandem structure).

[0285] The pixel defining layer 380 is located on the organic layer 180 and the anode. The pixel defining layer 380 has an opening OP (hereinafter, also referred to as the first opening), and the opening OP exposes and overlaps with the anode. The emission layer EML overlaps with a part of the anode and is located on the anode exposed by the opening OP.

[0286] In some aspects, the emission layer EML is only located within the opening OP of the pixel defining layer 380 and is separated from the adjacent emission layer EML by the pixel defining layer 380.

[0287] The pixel defining layer 380 can be formed of a negative black organic material.

[0288] The black organic material can include a light-blocking material, and the light-blocking material can include carbon black, carbon nanotubes, a resin or paste containing a black dye, metal particles such as nickel, aluminum, molybdenum, and their alloys, metal oxide particles, or metal nitride particles (e.g., chromium nitride).

[0289] The pixel defining layer 380 contains a light-blocking material and is black in color, and can have the property of absorbing / blocking light rather than reflecting light.

[0290] The negative black organic material can have the property of removing the covered part by the mask.

[0291] The spacer 385 is formed on the pixel defining layer 380.

[0292] The spacer 385 includes a first portion 385-1 that is relatively high in height and located in a relatively narrow region and a second portion 385-2 that is relatively low in height and located in a relatively wide region.

[0293] In Figure 6 it, the first portion 385-1 and the second portion 385-2 within the spacer 385 are shown separately by a dashed line.

[0294] Here, the first portion 385-1 can be used to ensure rigidity against pressing force by enhancing scratch resistance.

[0295] The second portion 385-2 can be used to support the contact (e.g., adhesion) between the pixel defining layer 380 and the upper functional layer FL.

[0296] The first portion 385-1 and the second portion 385-2 are formed of the same material and can be formed of a positive photosensitive organic material (e.g., photosensitive polyimide (PSPI)).

[0297] Because the photosensitive organic material has positive characteristics, the portions not covered by the mask can be removed.

[0298] The spacer 385 can be transparent so that light can be transmitted and / or reflected (e.g., partially reflected).

[0299] The pixel defining layer 380 can be formed as negative and the spacer 385 can be formed as positive, and based on the embodiment, the pixel defining layer 380 and the spacer 385 can include the same material.

[0300] At least a part of the upper surface of the pixel defining layer 380 is covered by the spacer 385, and the edge of the second portion 385-2 has a structure spaced apart from the edge of the pixel defining layer 380, and a part of the pixel defining layer 380 has a structure not covered by the spacer 385.

[0301] The second portion 385-2 even covers a part of the upper surface of the pixel defining layer 380 where the first portion 385-1 is not located, thereby enhancing the adhesion characteristics between the pixel defining layer 380 and the functional layer FL.

[0302] In this embodiment, on a plane, the spacer 385 is only located in the region overlapping with the light blocking layer 220 to be described later. When viewed from the front of the display panel DP, the spacer 385 is invisible because the spacer 385 is shielded by the light blocking layer 220.

[0303] The functional layer FL is located on the spacer 385 and the exposed pixel defining layer 380, and the functional layer FL is formed on the entire surface or some regions of the light-emitting display panel DP. For example, the functional layer FL can be formed in all regions except the light-transmitting region of the second component region EA2.

[0304] The functional layer FL can include an electron injection layer, an electron transport layer, a hole transport layer, and a hole injection layer. The functional layer FL can be located above and below the light-emitting layer EML.

[0305] That is, the hole injection layer, the hole transport layer, the light-emitting layer EML, the electron transport layer, the electron injection layer, and the cathode Cathode are sequentially located on the anode Anode. The hole injection layer and the hole transport layer in the functional layer FL can be located below the light-emitting layer EML, and the electron transport layer and the electron injection layer can be located above the light-emitting layer EML.

[0306] The spacer 385 can reduce the defect rate caused by pressing force by improving the scratch resistance of the light-emitting display panel DP. According to an embodiment, the spacer 385 can improve the adhesion to the functional layer FL located at the top of the spacer 385, which can prevent moisture and air from being injected from the outside.

[0307] In some aspects, for the case where the light-emitting display panel DP has a flexible feature and is folded and unfolded, the high adhesion strength has the advantage of eliminating the problem of poor adhesion between layers.

[0308] The cathode Cathode can be formed as a transparent electrode or a reflective electrode.

[0309] Based on an embodiment, the cathode Cathode can be a transparent electrode or a semi-transparent electrode, and can include a metal thin film having a small work function such as, for example, lithium (Li), calcium (Ca), aluminum (Al), silver (Ag), magnesium (Mg), or their compounds (e.g., LiF), or a bilayer structure such as lithium fluoride / calcium (LiF / Ca) or lithium fluoride / aluminum (LiF / Al).

[0310] In some aspects, a transparent conductive oxide (TCO) film such as, for example, indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO), or indium oxide (In2O3) can be further provided on the metal thin film.

[0311] The cathode Cathode can be integrally formed throughout the entire surface of the light-emitting display panel DP.

[0312] The encapsulation layer 400 is located on the cathode Cathode.

[0313] The encapsulation layer 400 includes at least one inorganic layer and at least one organic layer, andFigure 6 Among them, the encapsulation layer 400 includes a first inorganic encapsulation layer 401, an organic encapsulation layer 402, and a second inorganic encapsulation layer 403 and has a three-layer structure.

[0314] The encapsulation layer 400 can be used to protect the light-emitting layer EML formed of an organic material from moisture or oxygen that may enter from the outside.

[0315] Based on the embodiment, the encapsulation layer 400 can include a structure in which an inorganic layer and an organic layer are further sequentially stacked therein.

[0316] The sensing insulating layers 501, 510, 511 and the plurality of sensing electrodes 540, 541 are positioned on the encapsulation layer 400 for touch detection.

[0317] In Figure 6 the embodiment of, two sensing electrodes 540 and 541 are used to detect touch in a mutual capacitance manner, but based on the embodiment, a single sensing electrode can also be used to detect touch in a self-capacitance manner.

[0318] The plurality of sensing electrodes 540 and 541 can be insulated by a second sensing insulating layer 510 between the sensing electrodes 540 and 541, and the lower sensing electrode 541 is located on the first sensing insulating layer 501. The second sensing insulating layer 510 is between the plurality of sensing electrodes 540 and 541, the upper sensing electrode 540 is located on the second sensing insulating layer 510, and the upper sensing electrode 540 is covered by a third sensing insulating layer 511.

[0319] Some of the plurality of sensing electrodes 540 and 541 can be electrically connected through openings formed in the second sensing insulating layer 510.

[0320] Here, the sensing electrodes 540 and 541 can be formed of a metal or a metal alloy such as, for example, aluminum (Al), copper (Cu), silver (Ag), gold (Au), molybdenum (Mo), titanium (Ti), and tantalum (Ta), and the sensing electrodes 540 and 541 can include a single layer or multiple layers.

[0321] The light-blocking layer 220 and the color filters 230R, 230G, and 230B are positioned on the third sensing insulating layer 511.

[0322] The light-blocking layer 220 can be positioned to overlap the sensing electrodes 540 and 541 in a plane. The light-blocking layer 220 can be positioned not to overlap the anode Anode in a plane.

[0323] The described positioning of the light-blocking layer 220 can ensure that the anode Anode and the light-emitting layer EML capable of displaying an image are not blocked by the light-blocking layer 220 and the sensing electrodes 540 and 541.

[0324] Reference Figure 6 , the light blocking layer 220 is only located in the area that overlaps with the pixel defining layer 380 on the plane, and one side of the light blocking layer 220 is indented inward from the corresponding side of the pixel defining layer 380.

[0325] The light blocking layer 220 has a second opening OPBM, and on the plane, the area of the second opening OPBM of the light blocking layer 220 is larger than the area of the opening OP of the pixel defining layer 380. On the plane, the opening OP of the pixel defining layer 380 can be located within the second opening OPBM of the light blocking layer 220.

[0326] Reference Figure 6 , a gap gap between one side of the pixel defining layer 380 and one side of the light blocking layer 220 is shown, and one side of the pixel defining layer 380 has a structure that protrudes outward by the gap gap from the corresponding side of the light blocking layer 220.

[0327] In some embodiments, the gap gap between the pixel defining layer 380 and the light blocking layer 220 can be equal to the gap between the opening OP of the pixel defining layer 380 and the second opening OPBM of the light blocking layer 220.

[0328] In some aspects, one side of the spacer 385 is positioned to be indented inward by a specific distance g1 from the corresponding side of the pixel defining layer 380, and one side of the spacer 385 is also indented inward from the corresponding side of the light blocking layer 220.

[0329] As a result, the spacer 385 can be invisible because the spacer 385 is shielded by the light blocking layer 220 when viewed from the front of the display panel DP.

[0330] When external light is incident, the external light can pass through the second opening OPBM of the light blocking layer 220 and then be reflected by the sidewall of the opening OP of the pixel defining layer 380.

[0331] The sidewall of the opening OP of the pixel defining layer 380 is curved, and color separation occurs depending on the position of reflection, so that the reflected light can appear in various colors such as, for example, a rainbow.

[0332] Since this reflected light after color separation can be easily seen by the user and deteriorate the display quality, in the embodiment, the second opening OPBM of the light blocking layer 220 and the opening OP of the pixel defining layer 380 are formed into an oval shape, and the oval direction or eccentricity of the oval shape is configured in various ways to reduce color separation or allow white reflected light to be recognized. The term "eccentricity" can also be referred to as "planar eccentricity" herein.

[0333] It will be described below in Figure 7This is discussed in more detail below.

[0334] The color filters 230R, 230G, and 230B are positioned on the sensing insulating layers 501, 510, and 511 and the light blocking layer 220.

[0335] The color filters 230R, 230G, and 230B include a red color filter 230R that allows red light to pass through, a green color filter 230G that allows green light to pass through, and a blue color filter 230B that allows blue light to pass through.

[0336] Each of the color filters 230R, 230G, and 230B can be positioned to overlap the anode Anode of the light-emitting diode in a plane, and the color filter of one color can be installed in the second opening OPBM of the light blocking layer 220 and fill the second opening OPBM of the light blocking layer 220.

[0337] Some of the color filters 230R, 230G, and 230B can also be located on the upper surface of the light blocking layer 220.

[0338] Since the light emitted from the light-emitting layer EML can become the corresponding color when passing through the color filter, all the light emitted from the light-emitting layer EML can have the same color.

[0339] However, the light-emitting layer EML emits light of different colors, and the displayed color can be enhanced by passing through the color filter of the same color.

[0340] The light blocking layer 220 can be positioned between the respective color filters 230R, 230G, and 230B.

[0341] Based on the embodiment, the color filters 230R, 230G, and 230B can be replaced with a color conversion layer or can further include a color conversion layer.

[0342] The color conversion layer can include quantum dots.

[0343] The planarization layer 550 covering the color filters 230R, 230G, and 230B is positioned on the color filters 230R, 230G, and 230B.

[0344] The planarization layer 550 is used to planarize the upper surface of the light-emitting display panel DP and can be a transparent organic insulating layer containing one or more materials selected from the group consisting of polyimide, polyamide, acrylic resin, benzocyclobutene, and phenolic resin.

[0345] Based on the embodiment, a low refractive index layer and an additional planarization layer can be further positioned on the planarization layer 550 to improve the front visibility and light output efficiency of the display panel DP.

[0346] Light can be refracted by the low-refractive-index layer and the additional planarization layer having high refractive characteristics and emitted toward the front surface.

[0347] In this case, based on the embodiment, the planarization layer 550 may be omitted, and the low-refractive-index layer and the additional planarization layer may be directly located on the color filter 230.

[0348] In this embodiment, a polarizer is not included on top of the planarization layer 550.

[0349] In other words, when external light is incident and reflected by the anode Anode or the sidewall of the opening OP of the pixel defining layer 380 and is visible to the user, the polarizer can prevent the display quality from deteriorating.

[0350] However, the polarizer has the disadvantage of consuming more power to display a specific brightness by not only reducing the reflection of external light but also reducing the light emitted from the light-emitting layer EML.

[0351] To reduce power consumption, the light-emitting display device of this embodiment may not include a polarizer.

[0352] In some aspects, in this embodiment, the side portion of the anode Anode is covered by the pixel defining layer 380 to reduce the degree of reflection from the anode Anode, and a light-blocking layer 220 is also formed to reduce the degree of incident light, thereby reducing the amount of light incident on the anode Anode, and the light-blocking layer 220 already includes a structure for preventing deterioration of the display quality.

[0353] Therefore, according to Figure 6 the embodiment, a light-emitting display panel DP can be realized without separately forming a polarizer on the front surface of the light-emitting display panel DP.

[0354] Hereinafter, the second opening OPBM of the light-blocking layer 220 and the opening OP (also referred to as the first opening) of the pixel defining layer 380 will be described based on the structure formed in the display area DA of the light-emitting display panel DP through Figure 7 and Figure 8 . Aspects of this structure will be described in more detail.

[0355] Figure 7 and Figure 8 are plan views of a part of a display panel according to an embodiment.

[0356] In Figure 7 one second opening OPBM of the light-blocking layer 220 overlapping with a corresponding opening OP of the pixel defining layer 380 is shown. In Figure 8 a plurality of second openings OPBM of the light-blocking layer 220 are shown, and a plurality of openings OP of the pixel defining layer 380 are shown.

[0357] First, it will be described through Figure 7 the structure of a second opening OPBM of the light-blocking layer 220 and a corresponding opening OP of the pixel definition layer 380 that overlap each other.

[0358] Specifically, in Figure 7 only an opening OP of the pixel definition layer 380 and a second opening OPBM of the light-blocking layer 220 corresponding thereto are shown.

[0359] In Figure 7 the pixel definition layer 380 is located outside the opening OP, and the light-blocking layer 220 is also located outside the second opening OPBM.

[0360] In Figure 7 the embodiment, the opening OP of the pixel definition layer 380 is formed to have an oval shape in a plane, and the second opening OPBM of the light-blocking layer 220 is formed to have an oval shape in a plane, but the horizontal gaps gap1, gap1', gap2, gap2' between the opening OP of the pixel definition layer 380 and the second opening OPBM of the light-blocking layer 220 are not constant.

[0361] In Figure 7 the gaps between the opening OP of the pixel definition layer 380 and the second opening OPBM of the light-blocking layer 220 in the major axis direction and the minor axis direction are respectively indicated by arrows.

[0362] In Figure 7 the gaps gap1, gap1' (hereinafter, also referred to as the major axis direction gaps) are the horizontal gaps between the opening OP of the pixel definition layer 380 and the second opening OPBM of the light-blocking layer 220 in the major axis direction in a plane, and the gaps gap2, gap2' (hereinafter, also referred to as the minor axis direction gaps) are the horizontal gaps between the opening OP of the pixel definition layer 380 and the second opening OPBM of the light-blocking layer 220 in the minor axis direction.

[0363] In the opening OP of the pixel definition layer 380 and the corresponding second opening OPBM of the light-blocking layer 220, the major axis direction gaps gap1, gap1' have values different from those of the minor axis direction gaps gap2, gap2'. The minor axis direction gaps gap2, gap2' have values larger than those of the major axis direction gaps gap1, gap1'.

[0364] The difference between the major axis direction gaps gap1, gap1' and the minor axis direction gaps gap2, gap2' can have a value of 0.1 μm or more and 1 μm or less. Refer to Figure 13, due to the errors that may occur in the actual process, since the maximum possible difference can be 2.6 μm, the difference between the long-axis direction gaps gap1, gap1' and the short-axis direction gaps gap2, gap2' can be 0.1 μm or more and 2.6 μm or less.

[0365] These values indicate that the horizontal gap can depend on the layer (e.g., Figure 12 ) located between the light blocking layer 220 and the pixel defining layer 380 in the cross-section (see Figure 12 ), such as the encapsulation layer 400 in

[0366] Based on the embodiments, in order to be able to display at a certain level of brightness at a 45-degree viewing angle, the thickness of the encapsulation layer 400 or the thickness of the layer located between the light blocking layer 220 and the pixel defining layer 380 can be formed to be approximately 6 μm.

[0367] In some aspects, based on the embodiments, each of the long-axis direction gaps gap1, gap1' can have different values and each of the short-axis direction gaps gap2, gap2' can have different values, and the "'" is marked to distinguish the gaps. However, based on the embodiments, the long-axis direction gaps gap1, gap1' can have the same value, and the short-axis direction gaps gap2, gap2' can also have the same value.

[0368] In some embodiments, although not explicitly shown in Figure 7 , the opening OP of the pixel defining layer 380 and the corresponding second opening OPBM of the light blocking layer 220 also have a horizontal gap in the direction between the long axis direction and the short axis direction (hereinafter, also referred to as the direction other than the long axis direction and the short axis direction or the oblique direction), and this horizontal gap can have a value different from the values of the long-axis direction gaps gap1, gap1' and the short-axis direction gaps gap2, gap2'. The horizontal gap in the oblique direction between the opening OP of the pixel defining layer 380 and the corresponding second opening OPBM of the light blocking layer 220 can be referred to as the oblique gap.

[0369] Here, the elliptical shape of the opening OP of the pixel defining layer 380 and the second opening OPBM of the light blocking layer 220 has two foci and connects the points with a constant sum of the distances from the two foci, and the elliptical shape can have a certain shape and can have a long axis and a short axis. In the examples described herein, the opening OP described herein can be an elliptical shape (e.g., having two reflection symmetry axes) or an oval shape (e.g., having a single reflection symmetry axis). Each aspect of the oval-shaped opening described herein and each aspect of the elliptical-shaped opening described herein can be interchangeably applied to each other.

[0370] In some embodiments, the eccentricity of the ellipse is the distance between the two foci divided by the length of the major axis.

[0371] When the eccentricity is 0, the shape is a circle, and when the eccentricity is 1, the shape forms a parabola. Thus, the ellipse has an eccentricity value greater than 0 and less than 1.

[0372] The eccentricity value of the elliptical shape of the opening OP of the pixel defining layer 380 and the second opening OPBM of the light blocking layer 220 may vary based on the embodiments, and the opening OP of the pixel defining layer 380 and the second opening OPBM of the light blocking layer 220 may have different eccentricities.

[0373] In some aspects, based on the embodiments, the major axis direction of the opening OP of the pixel defining layer 380 and the second opening OPBM of the light blocking layer 220 may vary, and the minor axis direction is perpendicular to the major axis direction.

[0374] Having the same structure as that shown in Figure 7 The opening OP of the pixel defining layer 380 and the second opening OPBM of the light blocking layer 220 may be arranged in the display area DA as shown in Figure 8 shown.

[0375] In Figure 8 it, the red, green, and blue primary colors are displayed based on the light emitting layer, and the opening OP of the pixel defining layer 380 corresponding to each light emitting layer and the second opening OPBM of the light blocking layer 220 corresponding to each light emitting layer are respectively distinguished as openings OPr, OPg, OPb and second openings OPBMr, OPBMg, OPBMb.

[0376] Here, r, g, and b may respectively correspond to red, green, and blue.

[0377] The openings OPr, OPg, OPb of the pixel defining layer 380 respectively correspond to the second openings OPBMr, OPBMg, OPBMb of the light blocking layer 220.

[0378] That is, within each of the second openings OPBMr, OPBMg, OPBMb of the light blocking layer 220, there are openings OPr, OPg, OPb of the pixel defining layer 380 corresponding to each of the second openings OPBMr, OPBMg, OPBMb of the light blocking layer 220.

[0379] The second openings OPBMr, OPBMg, OPBMb of the light blocking layer 220 and the corresponding openings OPr, OPg, OPb of the pixel defining layer 380 may overlap each other in the plane.

[0380] The openings OPr, OPg, and OPb of the pixel defining layer 380 can be arranged at various angles, and the red opening OPr, the green opening OPg, and the blue opening OPb have different eccentricities.

[0381] In some embodiments, each of the openings OPr, OPg, and OPb of the same color can be formed with the same or different eccentricities.

[0382] Here, the elliptical eccentricity of the openings OPr, OPg, and OPb of the pixel defining layer 380 can be in the range of 0.2 to 0.85.

[0383] At this time, each of the second openings OPBMr, OPBMg, and OPBMb of the light blocking layer 220 can have an eccentricity in the range of 0 to 0.84, and the corresponding openings OPr, OPg, and OPb of the pixel defining layer 380 on the plane can be formed such that the distance from each of the second openings OPBMr, OPBMg, and OPBMb in the major axis direction is smaller than the distance from each of the second openings OPBMr, OPBMg, and OPBMb in the minor axis direction by a value in the range of 0.1 μm to 2.6 μm.

[0384] Based on the embodiment, each of the second openings OPBMr, OPBMg, and OPBMb of the light blocking layer 220 has a major axis direction and a minor axis direction starting from the corresponding one of the openings OPr, OPg, and OPb of the pixel defining layer 380 on the plane. The gaps in the diagonal direction can also have an irregular structure, and the openings OPr, OPg, and OPb of the pixel defining layer 380 and the corresponding second openings OPBMr, OPBMg, and OPBMb of the light blocking layer 220 can have an irregular structure, and the gaps between the openings OPr, OPg, and Opb of the pixel defining layer 380 and the corresponding second openings OPBMr, OPBMg, and OPBMb of the light blocking layer 220 on the plane can have a horizontal gap in the range of 0 μm to 20 μm.

[0385] In Figure 8 it, the openings OPr, OPg, and OPb of the pixel defining layer 380 and the second openings OPBMr, OPBMg, and OPBMb of the light blocking layer 220 are arranged in various directions and can be explained based on the direction of the major axis of the ellipse.

[0386] According to an embodiment, the angles formed by the major axes of the second openings OPBMr, OPBMg, and OPBMb of the light blocking layer 220 may have four or more angles, and in addition, the angles formed by the major axes may be arranged at an angular interval of 45 degrees or less. Herein, the angle formed by the major axis refers to the angle formed by the major axis with respect to the first direction DR1 or the second direction DR2, unless otherwise clearly indicated by the context.

[0387] As an example, focusing on the specific angular relationships of an embodiment having five angles, the relationships are as follows.

[0388] In an embodiment having five angles, the angles of the major axes are formed at an angular interval of 36 degrees. Thus, if one major axis has 0 degrees based on the first direction DR1, the other four major axes have angles of 36 degrees, 72 degrees, 108 degrees, and 144 degrees based on the first direction DR1, for a total of five angles.

[0389] In other words, the angular interval between the angles of the major axes can be determined by dividing 180 degrees by 5 (which is the number of directions), and this is because two angles with an angular difference of 180 degrees out of 360 degrees have the directions of the major axes of substantially the same ellipse, which can mean calculating the angular interval by dividing 180 degrees by the above-mentioned number.

[0390] The major axes of the openings OPr, OPg, and OPb of the pixel defining layer 380 and / or the second openings OPBMr, OPBMg, and OPBMb of the light blocking layer 220 are spaced apart at equal angular intervals at a specific angular interval of 45 degrees or less.

[0391] However, based on an embodiment, the angles formed by each major axis may be arranged at an irregular angular interval of 45 degrees or less.

[0392] Embodiments in which the major axes of the openings are arranged at unequal angular intervals may be intentionally arranged to reduce the diffraction pattern, or may be arranged at unequal angular intervals due to process errors.

[0393] In some aspects, based on an embodiment, due to process errors or the like, the major axis directions of the second openings OPBMr, OPBMg, and OPBMb of the light blocking layer 220 and the openings OPr, OPg, and OPb of the pixel defining layer 380 form a certain angle, and correspondingly, the major axis directions may have an angle of more than 0 degrees and less than 20 degrees.

[0394] In some embodiments, in order to make a unit pixel including a red opening, a green opening, and a blue opening have a square structure, the angles of the major axes are formed to have the square of an integer (such as, for example, 2 2 、3 2 、4 2, 5 2 etc.) may be appropriate.

[0395] Here, the unit pixel may include at least each of a red opening, a green opening, and a blue opening, and a plurality of openings (e.g., green openings) may be formed for one color.

[0396] Reference Figure 8 shows that the minimum distance between adjacent second openings OPBMr, OPBMg, and OPBMb of the light blocking layer 220 is 10.4 μm.

[0397] This may vary depending on the pixels per inch (ppi) value, and in the Figure 8 embodiment, a high-resolution display device of 500 ppi is shown.

[0398] In this way, in a high-resolution display device, the gap between adjacent second openings OPBMr, OPBMg, and OPBMb of the light blocking layer 220 can be narrowed, but the gap in the long axis direction is made narrower than the gap in the short axis direction, so that even in a high-resolution display device, the gap between adjacent second openings OPBMr, OPBMg, and OPBMb of the light blocking layer 220 is relatively large, ensuring 10.4 μm at 500 ppi.

[0399] Generally, when forming the second openings OPBMr, OPBMg, and OPBMb in the light blocking layer 220, considering the process conditions and errors, the minimum gap between adjacent second openings OPBMr, OPBMg, and OPBMb is 10 μm, ensuring that the minimum gap can support the effective operation of the display panel according to one or more embodiments of the present disclosure. In the reference Figure 8 described embodiment, even in a high-resolution display device of 500 ppi, the actual light blocking layer 220 can be formed without error by etching, and as a result, even in a high-resolution light-emitting display device, less color separation of external light occurs, or the display device can have the advantage of generating a constant diffraction pattern or color separation independent of the angle.

[0400] Hereinafter, reference will be made to Figure 9 and Figure 10 to describe comparative examples.

[0401] Figure 9 and Figure 10 are plan views of a part of a display panel according to a comparative example.

[0402] Figure 9 Corresponding to Figure 7 and Figure 10 Corresponding to Figure 8Correspondingly, in the comparative example, the gap in each direction between the opening OP of the pixel defining layer 380 and the second opening OPBM of the light blocking layer 220 on the plane is constant.

[0403] Figure 9 A comparative example is shown in which the horizontal gap gap' between the opening OP of the pixel defining layer 380 and the corresponding second opening OPBM of the light blocking layer 220 in the display area is constant, and Figure 10 shows a plurality of openings OPr, OPg, OPb of the pixel defining layer 380 and a plurality of second openings OPBMr, OPBMg, OPBMb of the light blocking layer 220.

[0404] Reference Figure 10 When Figure 9 the comparative example structure is formed in a high-resolution display device of 500 ppi, the minimum gap between adjacent second openings OPBMr, OPBMg, OPBMb of the light blocking layer 220 is 8.7 μm.

[0405] The above values described with reference to the comparative example structure are gaps that are difficult to actually form in the light blocking layer 220 when considering process conditions and errors, and the comparative example structure may not be formed in the manufactured display panel, or there may be a problem that the comparative example structure is formed with gaps and shapes different from those of the Figure 10 example in terms of gaps and shapes.

[0406] The advantages supported by the exemplary embodiments of the present disclosure can be explained as follows by comparing Figure 8 and Figure 10 If a polarizer is not formed on the front surface of the light-emitting display device, there may be a disadvantage that external light is reflected and visible. In order to reduce color separation of external light or generate a constant diffraction pattern or color separation independent of the angle, the opening OP of the pixel defining layer 380 and / or the second opening OPBM of the light blocking layer 220 can be formed in an elliptical shape, and the eccentricity or the major axis direction can be changed in various ways.

[0407] At this time, the second opening OPBM is formed larger than the opening OP of the pixel defining layer 380. Therefore, when manufacturing a high-resolution light-emitting display device, the gap between adjacent second openings OPBM is smaller than the minimum value that can be formed, and there may be a problem that it is impossible to actually form.

[0408] Generally, the minimum line width in the process of the light blocking layer 220 is about 10 μm, and it is difficult to manufacture a line width less than 10 μm.

[0409] However, referring to

[0410] However, referring to Figure 10Comparative example: In a light-emitting display device with 500 ppi, the minimum gap between adjacent second openings OPBMr, OPBMg, and OPBMb of the light-blocking layer 220 needs to be 8.7 μm, which may cause process problems associated with manufacturing the light-emitting display device.

[0411] However, referring to Figure 8 , even in a light-emitting display device with 500 ppi, the minimum gap between adjacent second openings OPBMr, OPBMg, and OPBMb of the light-blocking layer 220 is formed to be 10.4 μm. Therefore, there is no problem in forming a high-resolution light-emitting display device. And thus, even in a high-resolution light-emitting display device with more than 500 ppi, color separation of external light can be reduced, or a constant diffraction pattern or color separation independent of the angle can be formed.

[0412] Accordingly, as shown in Figure 7 and Figure 8 , the expected shape and gap in a high-resolution display device are formed by using the second openings OPBMr, OPBMg, and OPBMb of the light-blocking layer 220 that make the gap in the long-axis direction narrower than the gap in the short-axis direction, and the second openings OPBMr, OPBMg, and OPBMb can be arranged at various angles, gaps, and / or eccentricities so that color separation of external light occurs less frequently or a constant diffraction pattern or color separation independent of the angle is generated.

[0413] Hereinafter, various modified embodiments will be described with reference to Figures 11 to 14 the description.

[0414] First, aspects of the structure of the embodiments described herein will be described in more detail by Figure 11 referring to Figure 7 the description.

[0415] Figure 11 is a table summarizing the gaps of the embodiments and comparative examples.

[0416] Figure 11 More specifically, it shows Figure 7 the long-axis direction gap and short-axis direction gap of the embodiments of Figure 9 and the comparative examples of

[0417] In Figure 11 , Figure 7 the long-axis direction gaps gap1, gap1' of the embodiments of Figure 9 are described as the long axis and the short-axis direction gaps gap2, gap2' are described as the short axis, and in the comparative examples of

[0418] in some aspects, Figure 11The gap described in [description] is divided into a total gap, a safety gap, and a margin, and the total gap is the sum of the safety gap and the margin and can correspond to a design value.

[0419] In other words, if the process is implemented with the total gap set to 5.72 μm through design, the error that may occur due to the process margin can be 1.17 μm, indicating that the minimum safety gap can be 4.55 μm.

[0420] Here, the margin value can vary depending on the process conditions.

[0421] According to Figure 11 , in Figure 9 's comparative example, the total gap in both the major axis direction and the minor axis direction is set to 5.72 μm, and when considering the margin, the safety gap can be 4.55 μm.

[0422] In some embodiments, in Figure 7 's embodiment, the gap in the minor axis direction is the same as the gap in Figure 9 's comparative example, but the gap in the major axis direction is 1 μm smaller than the gap in the minor axis direction.

[0423] That is to say, Figure 7 's embodiment has a total gap of 4.72 μm in the major axis direction, and considering the margin, the minimum safety gap can be 3.55 μm.

[0424] This gap will be described in detail through the cross-sectional view of Figure 12 .

[0425] Figure 12 is a cross-sectional view clearly showing the gap in Figure 11 .

[0426] Referring to Figure 12 , the structure below the organic layer 180 is omitted, and the anode and cathode located above and below the light-emitting layers EMLr and EMLg are also omitted.

[0427] Between the pixel defining layer 380 and the light blocking layer 220, only the encapsulation layer 400 is shown.

[0428] Based on the embodiment, the sensing insulating layer and the sensing electrode can be further positioned on the encapsulation layer 400.

[0429] The gap gap between one side of the pixel defining layer 380 and the corresponding side of the light blocking layer 220 is related to the angle (maximum viewing angle) at which the light emitted from the light-emitting layers EMLr and EMLg is not blocked by the pixel defining layer 380 and the light blocking layer 220 and is transmitted.

[0430] In other words, as the gap increases, the maximum viewing angle can increase.

[0431] The maximum viewing angle is also affected by the distance in the third direction DR3 between the pixel defining layer 380 and the light blocking layer 220, and when the distance in the third direction DR3 between the pixel defining layer 380 and the light blocking layer 220 increases, the viewing angle can decrease even if the gap is the same.

[0432] Here, the encapsulation layer 400 can have a thickness of approximately 6 μm.

[0433] In Figure 12 a 45-degree viewing angle is shown, but this is only an example, and since the viewing angle commonly used in the light-emitting display device is 45 degrees, the viewing angle in Figure 12 is also shown as 45 degrees.

[0434] In some aspects, although the arrow corresponding to the viewing angle in Figure 12 is shown as not being bent at the boundary of each layer, substantially, light can be transmitted along a path that is slightly bent at the boundary of each layer.

[0435] Based on the above structural features, refer to Figure 13 to describe the numerical ranges of the gap and eccentricity that the embodiments can have.

[0436] Figure 13 is a table listing the ranges of the gap and eccentricity according to the embodiments.

[0437] Figure 13 The gap in

[0438] Figure 13 is described not only as a design value but also as the minimum and maximum values that can be actually formed by the process. Figure 11 Each gap value in

[0439] Figure 13 corresponds to the total gap in Figure 12 The minimum value in

[0440] is the minimum value of the gap, and the minimum value is the gap when the luminance ratio decreases by 1% at the 45-degree viewing angle shown in Figure 13 which means that when the gap in the long-axis direction is 2.6 μm smaller than the gap in the short-axis direction, the luminance ratio decreases by 1% at the 45-degree viewing angle.

[0441] Here, the design value of the gap is set such that the gap in the short-axis direction is 1 μm larger than the gap in the long-axis direction.

[0442] Reference Figure 13 , if the design value is set such that the gap in the major axis direction is 1 μm smaller than the gap in the minor axis direction, then due to process errors, etc., the actual gap in the major axis direction formed can be a minimum of 3.12 μm and a maximum of 4.82 μm.

[0443] Therefore, the gap in the major axis direction can be at least 0.9 μm smaller or at most 2.6 μm smaller than the gap in the minor axis direction.

[0444] Since Figure 13 the numerical range in is the numerical range when the design value is set such that the gap in the major axis direction is 1 μm smaller than the gap in the minor axis direction, so this numerical range can change as the design value changes from 0.1 μm to less than 1 μm.

[0445] However, when the design value is 1 μm, the gap in the major axis direction can be smaller than the gap in the minor axis direction, and the maximum gap difference between the gap in the major axis direction and the gap in the minor axis direction can reach 2.6 μm.

[0446] In some embodiments, in Figure 13 eccentricity is also described.

[0447] The eccentricity is the eccentricity value of the second opening OPBM of the light blocking layer 220 determined based on the gap in the minor axis direction and the gap in the major axis direction.

[0448] In some cases, based on the embodiments, when the length in the minor axis direction and the length in the major axis direction change, the eccentricity value can be different from the eccentricity value described in the reference Figure 13 described.

[0449] That is Figure 9 the eccentricity of the second opening OPBM of the light blocking layer 220 in the comparative example of is 0.56, and when comparing the minimum eccentricity and the maximum eccentricity, the eccentricity of the second opening OPBM of the light blocking layer 220 can be at least 0.01 smaller and at most 0.2 smaller.

[0450] In some embodiments, as shown in Figure 24 the eccentricity of the elliptical shape of the opening OP of the pixel definition layer 380 that can be applied in such embodiments can have an eccentricity in the range of 0.2 to 0.85, and the eccentricity of the elliptical shape of the second opening OPBM of the light blocking layer 220 can have an eccentricity value in the range of 0 to 0.84, which is an amount of eccentricity value smaller in the range of 0.01 to 0.2.

[0451] Next Figure 14 shows in connection with Figure 13An example of the difference in the 1% luminance difference at a 45-degree viewing angle corresponding to the minimum value in

[0452] Figure 14 It is a table of the luminance ratio according to the gap and the viewing angle in the simulation comparison example.

[0453] In Figure 14 In the comparison example where both the opening of the pixel defining layer and the opening of the light blocking layer are circular (see Figure 18 ), by changing the gap between the opening of the pixel defining layer and the second opening of the light blocking layer, the luminance change at different viewing angles is tabulated.

[0454] In some embodiments, in Figure 14 In addition, the viewing angle according to the gap is also shown separately, which may mean the angle at which the luminance can be viewed as it is without reducing the gap.

[0455] Referring to Figure 14 , it can be seen that a 1% reduction in luminance (99%) at a 45-degree viewing angle corresponds to a reduction of approximately 0.36 μm to 0.57 μm (about 0.4 μm) in red, green, and blue.

[0456] That is to say, the luminance characteristics of this embodiment (where the design value is reduced by 1 μm) match the luminance characteristics of the comparison example (where the design value is reduced by about 0.4 μm), so it has the advantage of being able to have a relatively high luminance even at a higher resolution.

[0457] In some aspects, based on the embodiment, the direction of the major axis of the oval shape can be changed to reduce the luminance difference depending on the direction.

[0458] Hereinafter, by referring to Figures 15 to 17 The structure of the light emitting display panel DP formed in the display area DA is described for an exemplary embodiment in which the second opening OPBM of the light blocking layer 220 and the opening OP (also referred to as the first opening) of the pixel defining layer 380 are each formed in an elliptical shape (in other words, each is an elliptical shape).

[0459] Figures 15 to 17 It is a plan view of a part of the display panel according to the embodiment.

[0460] Figures 15 to 17 Each shows a different embodiment, and Figure 15 shows an embodiment in which the second opening OPBM of the light blocking layer 220 and the opening OP of the pixel defining layer 380 are arranged at various angles as an example, Figure 16 shows an embodiment in which the second opening OPBM of the light blocking layer 220 and the opening OP of the pixel defining layer 380 are formed with various eccentricities, and Figure 17An embodiment is shown in which the second opening OPBM of the light-blocking layer 220 and the opening OP of the pixel definition layer 380 are arranged at various angles and formed with various eccentricities.

[0461] In some aspects, in Figures 15 to 17 's embodiment, a unit pixel includes two light-emitting regions of one color and a total of four light-emitting regions.

[0462] Specifically, one unit pixel includes four adjacent light-emitting regions, and the four light-emitting regions include two first-color light-emitting regions among the three-color light-emitting regions, and among the remaining second-color and third-color light-emitting regions, each light-emitting region can be included once.

[0463] In Figures 15 to 17 's embodiment, among the four light-emitting regions, two green light-emitting regions are included, and one red light-emitting region and one blue light-emitting region are included.

[0464] Hereinafter, this embodiment is also referred to as a green-segmented unit pixel.

[0465] First, the planar structures of the openings OPr, OPg, OPb of the pixel definition layer 380 and the second openings OPBMr, OPBMg, OPBMb of the light-blocking layer 220 will be described in detail through Figure 15 In

[0466] In Figure 15 , the openings OPr, OPg, OPb of the pixel definition layer 380 and the second openings OPBMr, OPBMg, OPBMb of the light-blocking layer 220 each have an oval planar shape with the same eccentricity.

[0467] That is to say, the red opening OPr, green opening OPg, and blue opening OPb of the pixel definition layer 380 can all be ellipses with the same eccentricity.

[0468] In some aspects, the red second opening OPBMr, green second opening OPBMg, and blue second opening OPBMb of the light-blocking layer 220 can all be ellipses with the same eccentricity.

[0469] Here, the elliptical eccentricity of the openings OPr, OPg, OPb of the pixel definition layer 380 can be in the range of 0.2 to 0.85, and the elliptical eccentricity of the second openings OPBMr, OPBMg, OPBMb of the light-blocking layer 220 can be in the range of 0 to 0.84.

[0470] One of the openings OPr, OPg, and OPb of the pixel defining layer 380 corresponds to one of the second openings OPBMr, OPBMg, and OPBMb of the light blocking layer 220.

[0471] That is, within each of the second openings OPBMr, OPBMg, and OPBMb of the light blocking layer 220, there are openings OPr, OPg, and OPb of the pixel defining layer 380 that correspond to each of the second openings OPBMr, OPBMg, and OPBMb of the light blocking layer 220.

[0472] Each of the second openings OPBMr, OPBMg, and OPBMb of the light blocking layer 220 and the corresponding openings OPr, OPg, and OPb of the pixel defining layer 380 may overlap each other in a plane, and the gaps in the major axis direction and the minor axis direction are different from each other, while the second openings OPBMr, OPBMg, and OPBMb of the light blocking layer 220 and the corresponding openings OPr, OPg, and OPb of the pixel defining layer 380 may be formed at the same angle with the same major axis direction of an elliptical shape.

[0473] Here, the openings OPr, OPg, and OPb of the pixel defining layer 380 and the corresponding second openings OPBMr, OPBMg, and OPBMb of the light blocking layer 220 may have different gaps in the major axis direction and the minor axis direction in a plane, and additionally, in a plane, the gap in the major axis direction may be formed to be smaller than the gap in the minor axis direction by a value within the range of 0.1 μm to 2.6 μm.

[0474] Based on the embodiment, each of the second openings OPBMr, OPBMg, and OPBMb of the light blocking layer 220 has a major axis direction and a minor axis direction starting from the corresponding one of the openings OPr, OPg, and OPb of the pixel defining layer 380 in a plane, and the horizontal gap in the diagonal direction may also have an irregular structure, and the openings OPr, OPg, and OPb of the pixel defining layer 380 and the corresponding second openings OPBMr, OPBMg, and OPBMb of the light blocking layer 220 may have an irregular structure, while the gap between the openings OPr, OPg, Opb of the pixel defining layer 380 and the corresponding second openings OPBMr, OPBMg, and OPBMb of the light blocking layer 220 in a plane may have a horizontal gap within the range of 0 μm to 20 μm.

[0475] In some aspects, based on the embodiment, the horizontal gap may be changed depending on the thickness of the layer (e.g., the encapsulation layer) located between them in a cross-section, and the encapsulation layer may have a thickness of approximately 6 μm.

[0476] In some aspects, based on the embodiments, the major axis directions of the second openings OPBMr, OPBMg, OPBMb of the light blocking layer 220 and the corresponding openings OPr, OPg, OPb of the pixel defining layer 380 are the same, or the major axis directions may form an angle greater than 0 degrees and less than or equal to 20 degrees due to process errors or the like.

[0477] In Figure 15 the embodiments of

[0478] As an example, focusing on the specific angular relationships of an embodiment having five angles, the relationships are as follows.

[0479] In an embodiment having five angles, the angles of the major axes are formed at an angular interval of 36 degrees. For example, for the major axes, angles of 0 degrees, 36 degrees, 72 degrees, 108 degrees, and 144 degrees based on the first direction DR1 are formed. A total of 5 angles are formed.

[0480] In other words, the angular interval between the angles of the major axes can be determined by dividing 180 degrees by 5 (which is the number of directions), and this is because two angles having an angular difference of 180 degrees in 360 degrees have the directions of the major axes of substantially the same ellipse. This can mean calculating the angular interval by dividing 180 degrees by the above-mentioned number.

[0481] In some embodiments, the plurality of second openings OPBMr, OPBMg, OPBMb of the light blocking layer 220 may have more than 4 angles, and the angles formed by the major axes may be arranged at an angular interval of 45 degrees or less.

[0482] As described herein, the angles formed by the major axes of the plurality of openings OPr, OPg, OPb of the pixel defining layer 380 or the plurality of second openings OPBMr, OPBMg, OPBMb of the light blocking layer 220 may be arranged at equal angular intervals at an angular interval of 45 degrees or less.

[0483] However, based on the embodiments, the angles formed by the major axes of each opening may be arranged at irregular angular intervals at an angular interval of 45 degrees or less.

[0484] Embodiments in which the major axes of the openings are arranged at unequal angular intervals may be intentionally arranged to reduce the diffraction pattern, or may be arranged at unequal angular intervals due to process errors.

[0485] To make the unit pixel including a red opening, a green opening, and a blue opening have a square structure, the angle of the major axis is formed to have the square of an integer (such as, for example, 2 2 、3 2 、4 2 、5 2 etc.), and the number may be appropriate.

[0486] Here, the unit pixel may include at least each of a red opening, a green opening, and a blue opening, and multiple openings (for example, green openings) may be formed for one color.

[0487] The angle formed by the major axis of the multiple openings OPr, OPg, OPb of the pixel defining layer 380 or the multiple second openings OPBMr, OPBMg, OPBMb of the light blocking layer 220 has four or more angles or is spaced at an angle interval of 45 degrees or less, and when arranged, less color separation of external light occurs, or a constant diffraction pattern or color separation independent of the angle occurs, which will be described in more detail in Figure 19 and Figure 20 .

[0488] In some embodiments, the embodiments described below will be described Figure 16 .

[0489] Figure 16 An embodiment is shown in which the second openings OPBMr, OPBMg, OPBMb of the light blocking layer 220 and the openings OPr, OPg, OPb of the pixel defining layer 380 are formed in an elliptical shape having two or more different eccentricities.

[0490] Based on the embodiment, each opening of the same color can be formed in an elliptical shape having more than 2 eccentricities.

[0491] Here, referring to Figure 24 , the eccentricity of the elliptical shape of the openings OPr, OPg, OPb of the pixel defining layer 380 can be in the range of 0.2 to 0.85, and the eccentricity of the elliptical shape of the second openings OPBMr, OPBMg, OPBMb of the light blocking layer 220 can be in the range of 0 to 0.84.

[0492] In Figure 16 , the major axis direction of the ellipse has only two directions forming 45 degrees with respect to the first direction DR1 or the second direction DR2. In some aspects, based on the embodiment, different from Figure 15 , the major axis direction can have four or fewer directions.

[0493] By Figure 16, the planar structures of the openings OPr, OPg, OPb of the pixel defining layer 380 and the second openings OPBMr, OPBMg, OPBMb of the light blocking layer 220 will be described in detail.

[0494] In Figure 16 , the openings OPr, OPg, OPb of the pixel defining layer 380 and the second openings OPBMr, OPBMg, OPBMb of the light blocking layer 220 have an elliptical planar shape. In Figure 16 , the major axis directions of the ellipses of the openings OPr, OPg, OPb of the pixel defining layer 380 and the second openings OPBMr, OPBMg, OPBMb of the light blocking layer 220 can be arranged only in two directions that form a 45-degree angle with respect to the first direction DR1 or the second direction DR2.

[0495] In some embodiments, each of the red opening OPr, green opening OPg, and blue opening OPb of the pixel defining layer 380 can be formed as an ellipse having at least two different eccentricities.

[0496] In some aspects, each of the red second opening OPBMr, green second opening OPBMg, and blue second opening OPBMb of the light blocking layer 220 can be formed as an ellipse having at least two different eccentricities.

[0497] In some aspects, in the Figure 16 embodiment, the openings OPr, OPg, OPb of the same color in the pixel defining layer 380 can have an elliptical planar shape with at least two different eccentricities, and the second openings OPBMr, OPBMg, OPBMb of the same color in the light blocking layer 220 can also have an elliptical planar shape with at least two different eccentricities.

[0498] One of the openings OPr, OPg, OPb of the pixel defining layer 380 corresponds to one of the second openings OPBMr, OPBMg, OPBMb of the light blocking layer 220.

[0499] That is, within each of the second openings OPBMr, OPBMg, OPBMb of the light blocking layer 220, there are openings OPr, OPg, OPb of the pixel defining layer 380 that correspond to each of the second openings OPBMr, OPBMg, OPBMb of the light blocking layer 220.

[0500] The second openings OPBMr, OPBMg, OPBMb of the light blocking layer 220 and the corresponding openings OPr, OPg, OPb of the pixel defining layer 380 can overlap each other in the plane and can have a constant horizontal distance from each other, and the major axis directions of the elliptical shapes can be formed at the same angle.

[0501] Here, the openings OPr, OPg, OPb of the pixel defining layer 380 and the corresponding second openings OPBMr, OPBMg, OPBMb of the light blocking layer 220 may have different gaps in the major axis direction and the minor axis direction on the plane. In some aspects, on the plane, the gap in the major axis direction may be formed to be smaller than the gap in the minor axis direction by a value in the range of 0.1 μm to 2.6 μm.

[0502] Based on the embodiment, each of the second openings OPBMr, OPBMg, OPBMb of the light blocking layer 220 has a major axis direction and a minor axis direction starting from the corresponding one of the openings OPr, OPg, OPb of the pixel defining layer 380 on the plane. The horizontal gap in the diagonal direction may also have an irregular structure, and the openings OPr, OPg, OPb of the pixel defining layer 380 and the corresponding second openings OPBMr, OPBMg, OPBMb of the light blocking layer 220 may have an irregular structure, and the gap between the openings OPr, OPg, Opb of the pixel defining layer 380 and the corresponding second openings OPBMr, OPBMg, OPBMb of the light blocking layer 220 on the plane may have a horizontal gap in the range of 0 μm to 20 μm.

[0503] Based on the embodiment, the horizontal gap may be changed depending on the thickness of the layer (e.g., the encapsulation layer) located therebetween in the cross section.

[0504] In some aspects, based on the embodiment, the major axis directions of the second openings OPBMr, OPBMg, OPBMb of the light blocking layer 220 and the corresponding openings OPr, OPg, OPb of the pixel defining layer 380 are the same, or the major axis directions may form an angle of more than 0 degrees and less than 20 degrees due to process errors or the like.

[0505] In Figure 16 the embodiment of, two or more elliptical shapes corresponding to the openings of the same color but having different eccentricities may be placed at different positions in different proportions.

[0506] Based on the embodiment, the same number of elliptical shapes having different eccentricities may be included in the display area, and based on the embodiment, they may be included in different numbers.

[0507] In an example where the red opening OPr of the pixel defining layer 380 is formed into two elliptical shapes having different eccentricities, the corresponding red second opening OPBMr of the light blocking layer 220 is also formed into different elliptical shapes having different eccentricities.

[0508] However, based on the embodiments, the red second opening OPBMr of the light blocking layer 220 may be formed with the same eccentricity.

[0509] Reference Figure 16 , the major axis of each of the plurality of openings OPr, OPg, OPb of the pixel defining layer 380 or the plurality of second openings OPBMr, OPBMg, OPBMb of the light blocking layer 220 forms an angle of 45 degrees with respect to the first direction DR1 and the second direction DR2.

[0510] In the embodiments in which the elliptical eccentricity is formed in various ways, different from Figure 15 , the number of angles formed by the major axis of the ellipse may be less than four.

[0511] That is to say, in Figure 16 's embodiments, various elliptical shapes with different eccentricities are formed to reduce color separation of external light or to generate a constant diffraction pattern or color separation independent of the angle.

[0512] Therefore, Figure 16 's embodiments can achieve constant color separation and / or a constant diffraction pattern in a different way from the way of Figure 15 's embodiments in which the major axis direction of the ellipse is changed.

[0513] In some embodiments, in Figure 16 's embodiments, the number of major axis directions of the ellipse is small, so a reflection diffraction pattern as shown in Figure 19 's (C) can be generated. Therefore, the directivity of the diffraction pattern can be reduced by forming one of the plurality of openings OPr, OPg, OPb of the pixel defining layer 380 and the plurality of second openings OPBMr, OPBMg, OPBMb of the light blocking layer 220 into a circular shape or by increasing the number of major axis directions in the elliptical shape.

[0514] In some embodiments, the embodiments of Figure 17 will be described below. Figure 17 's embodiments are embodiments that combine Figure 15 's embodiments and Figure 16 's embodiments.

[0515] In Figure 17In this case, the second openings OPBMr, OPBMg, OPBMb of the light blocking layer 220 and the openings OPr, OPg, OPb of the pixel defining layer 380 are formed in an elliptical shape having different eccentricities even for the same color, and the angles formed by the major axes of the second openings OPBMr, OPBMg, OPBMb of the light blocking layer 220 and the openings OPr, OPg, OPb of the pixel defining layer 380 have more than four angles, or the angles formed by the major axes can be arranged at an angle interval of 45 degrees or less.

[0516] Here, referring to Figure 24 , the eccentricity of the elliptical shape of the openings OPr, OPg, OPb of the pixel defining layer 380 can be in the range of 0.2 to 0.85, and the eccentricity of the elliptical shape of the second openings OPBMr, OPBMg, OPBMb of the light blocking layer 220 can be in the range of 0 to 0.84.

[0517] Figure 17 Examples of Figure 15 Examples of Figure 16 (including a plurality of openings OPr, OPg, OPb of the pixel defining layer 380 and a plurality of second openings OPBMr, OPBMg, OPBMb of the light blocking layer 220) all features. By having four or more second openings OPBMr, OPBMg, OPBMb or arranging them at an angle interval of 45 degrees or less and additionally forming the eccentricity of the ellipse in various ways, color separation of external light is reduced or a constant color separation or diffraction pattern independent of the angle is maintained.

[0518] Based on the embodiment, the major axis directions of the plurality of openings OPr, OPg, OPb of the pixel defining layer 380 or the plurality of second openings OPBMr, OPBMg, OPBMb of the light blocking layer 220 are formed at equal or unequal angle intervals.

[0519] Figures 15 to 17 A rough comparison of the examples of

[0520]

Table 1

[0521]

[0522]

[0523] To describe the characteristics of the above-mentioned embodiments, a comparative example of Figure 18 is described, and by Figure 19 comparing and describing the diffraction characteristics and dispersion characteristics of the reflected light between the comparative example and the embodiment.

[0524] Figure 18 is a plan view of a part of a display panel according to a comparative example, and Figure 19 is Figures 15 to 17 an embodiment of Figure 18 and a photograph of the reflection characteristics of a comparative example of

[0525] In Figure 18 the comparative example of Figures 15 to 17 unlike the embodiment of

[0526] In some embodiments, Figure 19 shows Figures 15 to 17 an embodiment of Figure 18 and the diffraction pattern and dispersion of the reflected light of a comparative example of Figure 19 where (A) of Figure 18 is a comparative example of Figure 19 where (B) of Figure 15 is an embodiment of Figure 19 where (C) of Figure 16 is an embodiment of Figure 19 and where (D) of Figure 17 is an embodiment of

[0527] First, observing Figure 19 the comparative example of (A) of

[0528] the diffraction pattern is formed in an annular shape (in other words, the diffraction pattern is annular), resulting in a diffraction pattern that is independent of the angle. However, multiple rings are formed and each ring represents a different color, so it can be confirmed that the reflected light is color-separated. Figure 19 Figure 19

[0529] Figure 19 In some embodiments, in Figure 19 the (C) of

[0530] the diffraction pattern has a linear pattern at an angle of 45 degrees, resulting in a diffraction pattern according to that angle, and this is caused by arranging only the major axis angle of the ellipse at 45 degrees, so some of the openings are circular, and the diffraction characteristics depending on the angle can be reduced by forming or increasing the direction of the major axis of the ellipse. Figures 20 to 22 The characteristics according to the major axis angle will be described below with reference to

[0531] First, referring to Figure 20Describes the relationship between the angle of the major axis of the ellipse and the direction of the diffraction pattern of reflected light.

[0532] Figure 20 is a diagram showing the reflection characteristics of a light-emitting display device depending on an angle.

[0533] Figure 20 The left side of (A), (B), and (C) shows a structure in which the opening of the pixel defining layer 380 and the opening of the light blocking layer 220 are arranged in the same direction, and the resulting reflection is shown on the right side.

[0534] refer to Figure 20 , for the case where the opening of the pixel defining layer 380 and the opening of the light blocking layer 220 have an elliptical shape, the diffraction pattern of the reflected light is also formed in an elliptical shape, but the major axis direction may be different.

[0535] That is, the major axis directions of the openings of the pixel defining layer 380 and the light blocking layer 220 and the major axis direction of the elliptical shape of the diffraction pattern of reflected light may be perpendicular to each other.

[0536] When the combination Figure 20 When the diffraction patterns (A), (B) and (C) on the right are combined, the combined diffraction pattern becomes as follows Figure 20 The circular diffraction pattern shown in (D) shows that it is possible to have a diffraction pattern that is independent of angle.

[0537] In the following, through Figure 21 and Figure 22 , examples are described with reference to multiple elliptical structures arranged at various angles in association with forming an angle-independent diffraction pattern.

[0538] Figure 21 are diagrams showing various angle arrangements according to an embodiment, and Figure 22 It is a photo of the reflective properties according to the angle.

[0539] first, Figure 21 Shown are the major axis directions of a set of ellipses that can be formed in a display area.

[0540] exist Figure 21 In (A), the opening OP of the pixel defining layer 380 or the second opening OPBM of the light blocking layer 220 has two long axis directions, and the two long axes are spaced apart at an angle of 90 degrees, thus illustrating an example in which the long axis directions are arranged.

[0541] exist Figure 21In (B) thereof, the opening OP of the pixel defining layer 380 or the second opening OPBM of the light blocking layer 220 has four major axis directions, and the four major axes are spaced apart at an angle of 45 degrees, thus showing an example in which the major axis directions are arranged.

[0542] In Figure 21 In (C) thereof, the opening OP of the pixel defining layer 380 or the second opening OPBM of the light blocking layer 220 has nine major axis directions, and the nine major axes are spaced apart at an angle of 20 degrees, thus showing an example in which the major axis directions are arranged.

[0543] In addition to Figure 21 those shown in Figure 19 depending on the angle, differences in diffraction patterns appear as shown in (C) of

[0544] To confirm this, Figure 22 diffraction patterns according to the number of various major axis directions are shown.

[0545] Figure 22 (A) of Figure 21 is a diffraction pattern having an example of 4 major axis angles as in (B) of Figure 22 the diffraction pattern of (B) of Figure 22 is a diffraction pattern having an example of 5 major axis angles, Figure 22 the diffraction pattern of (C) of Figure 22 is a diffraction pattern having an example of 5 major axis angles, and

[0546] To have Figure 22 a diffraction pattern independent of direction in Figure 22 the example embodiments of the present disclosure may have a diffraction pattern close to a circular shape, and in (A) of

[0547] the diffraction pattern has a protruding shape, so it can be seen that there are differences in diffraction characteristics and color separation depending on the direction. Figure 19 However, compared with the comparative example of (A) of

[0548] In some embodiments, Figure 22 (B) to (E) of

[0549] have a circular diffraction pattern and have diffraction characteristics and color separation independent of direction. Figure 22, if the opening OP of the pixel defining layer 380 or the second opening OPBM of the light blocking layer 220 is formed to have four or more major axis angles (also referred to herein as the angle with respect to the major axis), a constant diffraction pattern or color separation can occur regardless of the angle, and thus the display quality can be improved.

[0550] Referring to the above, the second opening OPBM of the light blocking layer 220 can have four or more major axis angles, and in an embodiment having four or more major axis angles, the major axis angles can be arranged at an angular interval of 45 degrees or less. In other words, the interval of the major axis angles can be 45 degrees or less.

[0551] Above, examples of the angular interval between the angles of the major axis of the ellipse and the number of angles were described.

[0552] Below, refer to Figure 23 and Figure 24 to describe the change in the reflection characteristic according to the change in the eccentricity of the ellipse.

[0553] Figure 23 and Figure 24 are diagrams showing the reflection characteristics according to the eccentricity.

[0554] Figure 23 shows a diagram of the distribution of the brightness of the diffraction pattern of the reflected light extracted according to the eccentricity value of the opening OP of the pixel defining layer 380 and the distribution of the color coordinates of two axes, and based on this, in Figure 24 , based on the eccentricity of the opening OP of the pixel defining layer 380, the standard deviation value of the brightness and the distance value of the color coordinates are shown in the graph.

[0555] In Figure 23[[END and ​ , the smaller the distance value of the brightness and the color coordinates, the weaker the diffraction is recognized.

[0556] In ​ , the position where the distance value of the brightness or the color coordinates is the smallest is indicated by an arrow.

[0557] Refer to ​ and ​ , when the eccentricity is 0.5, the brightness value is the smallest, and even considering the color coordinate distribution, this brightness value is used for the optimal embodiment.

[0558] In some aspects, refer to ​ , it is determined that in the region divided by the dashed line (i.e., in the range of 0.2 to 0.85), the brightness dispersion and the color coordinate dispersion do not significantly reduce the display quality, and thus, an ellipse having a range of such eccentricity can be applied in such an embodiment.

[0559] Based on the above, the eccentricity of the elliptical shape of the openings OPr, OPg, and OPb of the pixel defining layer 380 can have a range of 0.2 to 0.85, and referring to ​ , the eccentricity of the elliptical shape of the second openings OPBMr, OPBMg, and OPBMb of the light blocking layer 220 can have a range of 0 to 0.84.

[0560] Above, embodiments were described in which the opening OP of the pixel defining layer 380 or the second opening OPBM of the light blocking layer 220 has an eccentricity.

[0561] Based on the embodiments, at least two elliptical shapes having different eccentricities can be combined to form an opening OP of the pixel defining layer 380 or a second opening OPBM of the light blocking layer 220, and this will be described in detail by ​ and ​ this.

[0562] ​ and ​ are diagrams showing the structure of combining ellipses having different eccentricities.

[0563] In ​ , examples of combining two or more ellipses having different eccentricities are described in detail.

[0564] In ​ 's (A) and ​ 's (B), ellipses having different eccentricities are shown, and in ​ 's (C) and ​ 's (D), ovoids formed by combining two ellipses having different eccentricities in different ways are shown.

[0565] In ​ 's (A), an ellipse having an eccentricity of 0.8 is shown, and in ​ 's (B), an ellipse having an eccentricity of 0.6 is shown.

[0566] The ovoid combining these two ellipses can have a shape as shown in ​ 's (C) or ​ 's (D).

[0567] In ​ 's (C) and ​ 's (D), a dotted line is shown within the combined ovoid shape, and the ovoids on both sides of the dotted line are part of ellipses having different eccentricities.

[0568] In other words, ​ 's (C) is obtained by cutting along the second direction DR2 ​of (A) and ​ An example of combining the ellipses of (B) and then combining them, and ​ of (D) is cutting along the first direction DR1 ​ of (A) and ​ An example of combining the ellipses of (B) and then combining them.

[0569] The method of combining two ellipses with different eccentricities is not limited to this, and can be combined in various ways.

[0570] In ​ is shown the arrangement example of the second openings OPBMr, OPBMg, OPBMb of the combined oval-shaped light blocking layer 220 having ​ of (C) and the openings OPr, OPg, OPBMb of the pixel defining layer 380.

[0571] In ​ the embodiment of, only one unit pixel is shown, and one unit pixel includes one red opening OPr, OPBMr, one blue opening OPb, OPBMb and two green openings OPg, OPBMg.

[0572] In ​ the embodiment of, the major axis directions of each of the openings OPr, OPg, OPb of the pixel defining layer 380 can be different from each other, and the major axis directions of each of the second openings OPBMr, OPBMg, OPBMb of the light blocking layer 220 can also be different from each other.

[0573] As ​ shown, the embodiment using an oval that is a combination of two ellipses with different eccentricities as shown in ​ also uses the openings OPr, OPg, OPb of the pixel defining layer 380 and the second openings OPBMr, OPBMg, OPBMb of the light blocking layer 220. The angle formed by the major axis of each of the second openings OPBMr, OPBMg, OPBMb can have four or more angles, and the angles formed by the major axes can be arranged at an angular interval of 45 degrees or less.

[0574] In some aspects, the eccentricities of the two ellipses for combination can vary, so the size of the combined oval can also vary.

[0575] In some aspects, based on the embodiment, for each color, two ovals with different eccentricities can be combined, and even if they are associated with the same color, two ellipses with different eccentricities can be combined to form various ovals.

[0576] Here, referring to ​, the elliptic eccentricities of the openings OPr, OPg, and OPb of the pixel defining layer 380 can be in the range of 0.2 to 0.85, and the elliptic eccentricities of the second openings OPBMr, OPBMg, and OPBMb of the light blocking layer 220 can be in the range of 0 to 0.84.

[0577] The major axis directions of the openings OPr, OPg, and OPb of the pixel defining layer 380 and the corresponding second openings OPBMr, OPBMg, and OPBMb of the light blocking layer 220 can be the same or can form an angle of 20 degrees or less due to process errors or the like.

[0578] In some embodiments, the openings OPr, OPg, and OPb of the pixel defining layer 380 and the corresponding second openings OPBMr, OPBMg, and OPBMb of the light blocking layer 220 can have different gaps in the major axis direction and the minor axis direction on the plane. Additionally, on the plane, the gap in the major axis direction can be formed to be smaller than the gap in the minor axis direction by a value in the range of 0.1 μm to 2.6 μm.

[0579] Based on the embodiments, each of the second openings OPBMr, OPBMg, and OPBMb of the light blocking layer 220 has the major axis direction and the minor axis direction starting from the corresponding one of the openings OPr, OPg, and OPb of the pixel defining layer 380 on the plane. The horizontal gap in the diagonal direction can also have an irregular structure, and the openings OPr, OPg, and OPb of the pixel defining layer 380 and the corresponding second openings OPBMr, OPBMg, and OPBMb of the light blocking layer 220 can have an irregular structure, while the gap between the openings OPr, OPg, and Opb of the pixel defining layer 380 and the corresponding second openings OPBMr, OPBMg, and OPBMb of the light blocking layer 220 on the plane can have a horizontal gap in the range of 0 μm to 20 μm.

[0580] In ​ and ​ the embodiments of, embodiments combining two different elliptical shapes are shown and explained.

[0581] However, based on the embodiments, it is possible to combine two or more elliptical shapes having different eccentricities.

[0582] As described above, due to various angles or various eccentricities, embodiments combining two or more elliptical shapes can have blurred diffraction characteristics, making the ring shape less obvious and making it difficult for the user to easily identify color separation. Therefore, compared with the comparative examples, the embodiments can have improved display quality.

[0583] In some aspects, the elliptical shapes of the openings OPr, OPg, and OPb of the pixel defining layer 380 and the corresponding second openings OPBMr, OPBMg, and OPBMb of the light blocking layer 220 are formed to have a gap in the major axis direction that is smaller than the gap in the minor axis direction on a plane, and the gap in this direction may not be constant.

[0584] In some embodiments, according to an embodiment, the number and eccentricity of the elliptical shapes combined in the elliptical shapes of the openings OPr, OPg, and OPb of the pixel defining layer 380 may be different from the number and eccentricity of the elliptical shapes combined in the elliptical shapes of the second openings OPBMr, OPBMg, and OPBMb of the corresponding light blocking layer 220.

[0585] In some aspects, based on an embodiment, the openings of some colors may have a circular shape instead of an elliptical shape, and such embodiments will be described with reference to ​ describe such embodiments.

[0586] ​ is a plan view of a part of a display panel according to another embodiment.

[0587] ​ Based on ​ of an embodiment, wherein, different from ​ is that the red opening OPr of the pixel defining layer 380 and the red second opening OPBMr of the light blocking layer 220 are circular (eccentricity is 0) instead of elliptical.

[0588] In other words, the green opening OPg and blue opening OPb of the pixel defining layer 380 and the green second opening OPBMg and blue second opening OPBMb of the light blocking layer 220 all have an elliptical shape. The difference between the major axis direction gap and the minor axis direction gap between the openings OPg, OPb of the pixel defining layer 380 and the corresponding second openings OPBMg, OPBMb of the light blocking layer 220 is in the range of 0.1 μm to 2.6 μm.

[0589] In some aspects, the eccentricity of the openings OPg, OPb of the pixel defining layer 380 may be in the range of 0.2 to 0.85, and the eccentricity of the second openings OPBMg, OPBMb of the light blocking layer 220 may be in the range of 0 to 0.84.

[0590] In some aspects, based on an embodiment, one of the three color openings other than the red opening may have a circular shape.

[0591] In other words, according to an embodiment, one or two of the red opening OPr, the green opening OPg, and the blue opening OPb of the pixel defining layer 380 may have a circular shape, and the remaining openings may have an elliptical shape.

[0592] When the openings OPr, OPg, and OPb of the pixel defining layer 380 have a circular shape, the corresponding second openings OPBMr, OPBMg, and OPBMb of the light blocking layer 220 also have a circular shape, and the openings OPr, OPg, and OPb of the pixel defining layer 380 and the corresponding second openings OPBMr, OPBMg, and OPBMb of the light blocking layer 220 may be provided with a constant horizontal gap.

[0593] In ​ , similar to the embodiment of ​ the second openings OPBMg and OPBMb of the light blocking layer 220 and the openings OPg and OPb of the pixel defining layer 380 are formed in an elliptical shape having different eccentricities even for the same color, and the angles formed by the major axes of the second openings OPBMg and OPBMb of the light blocking layer 220 and the openings OPg and OPb of the pixel defining layer 380 have four or more angles, or the angles formed by the major axes may be arranged at an angular interval of 45 degrees or less.

[0594] Based on the embodiment, among the plurality of openings OPr, OPg, and OPb of the pixel defining layer 380 or the plurality of second openings OPBMr, OPBMg, and OPBMb of the light blocking layer 220, the major axes are separated at equal angular intervals or unequal angular intervals.

[0595] In ​ 's embodiment, at least one pair of the plurality of openings OPr, OPg, and OPb of the pixel defining layer 380 and the plurality of second openings OPBMr, OPBMg, and OPBMb of the light blocking layer 220 have an elliptical shape as in ​ 's embodiment, and the distance in the major axis direction is formed to be less than the distance in the minor axis direction.

[0596] As a result, as described herein, even a high-resolution light-emitting display device can have the advantages of less color separation of external light or a constant diffraction pattern or color separation independent of angle.

[0597] In some embodiments, ​ 's embodiment is an example in which the elliptical shape of one or two colors in ​ 's embodiment is changed to a circular shape. However, in ​ or ​ 's embodiment, the elliptical shape of one or two colors may also be changed to a circular shape.

[0598] In some aspects, in ​ the embodiment of, the oval shape of one or two colors can be changed to a circular shape.

[0599] In some embodiments, hereinafter, reference will be made to ​ describe another modified embodiment.

[0600] ​ is a plan view of a part of a display panel according to another embodiment.

[0601] In ​ , different from the embodiment in which the opening of ​ is formed in a circular shape (in other words, the opening is circular), the opening is formed in an elliptical shape, and an embodiment is shown in which the eccentricity of the ellipse is not the eccentricity (0.2 to 0.85) defined above, but an eccentricity (in the range of 0 to 0.2) is formed.

[0602] That is to say, ​ is ​ a modified example of, in which ​ the two red openings OPr, OPBMr in

[0603] Specifically, ​ the embodiment of ​ is based on the embodiment of ​ and is different from

[0604] In other words, the green opening OPg and blue opening OPb of the pixel defining layer 380 and the green second opening OPBMg and blue second opening OPBMb of the light blocking layer 220 all have an elliptical shape with an eccentricity of 0.2 to 0.85. The difference between the major axis direction gap and the minor axis direction gap between the openings OPg, OPb of the pixel defining layer 380 and the second openings OPBMg, OPBMb of the light blocking layer 220 is formed to be 0.1 μm or more and 2.6 μm or less.

[0605] In some aspects, the eccentricity of the openings OPg, OPb of the pixel defining layer 380 can have a value in the range of 0.2 to 0.85, and the eccentricity of the second openings OPBMg, OPBMb of the light blocking layer 220 can have a value in the range of 0 to 0.84.

[0606] In some embodiments, the difference between the gap in the major axis direction and the gap in the minor axis direction between the red opening OPr of the pixel defining layer 380 and the second red opening OPBMr of the light blocking layer 220 is in the range of 0.1 μm to 2.6 μm, or has a constant horizontal gap in all directions.

[0607] In some aspects, based on the embodiments, one of the other color openings among the three color openings, other than the red opening, may have an elliptical shape with an eccentricity in the range of 0 to 0.2.

[0608] That is, based on the embodiments, one or two of the red opening OPr, green opening OPg, and blue opening OPb of the pixel defining layer 380 have an elliptical shape with an eccentricity in the range of 0 to 0.2, and the remaining openings may have an elliptical shape with an eccentricity in the range of 0.2 to 0.85.

[0609] In some aspects, the second red opening OPBMr, second green opening OPBMg, and second blue opening OPBMb of the light blocking layer 220 may respectively have shapes corresponding to the planar shapes of the corresponding red opening OPr, corresponding green opening OPg, and corresponding blue opening OPb of the pixel defining layer 380.

[0610] The second openings OPBMr, OPBMg, OPBMb of the light blocking layer 220 corresponding to the openings OPr, OPg, OPb of the pixel defining layer 380 having an eccentricity in the range of 0.2 to 0.85 have a difference between the gap in the major axis direction and the gap in the minor axis direction in the range of 0.1 μm to 2.6 μm, or have an eccentricity in the range of 0 to 0.84.

[0611] In some embodiments, among the openings OPr, OPg, OPb of the pixel defining layer 380, the difference between the gap in the major axis direction and the gap in the minor axis direction of the second openings OPBMr, OPBMg, OPBMb of the light blocking layer 220 corresponding to the openings having an eccentricity in the range of 0 to 0.2 may have a value in the range of 0.1 μm to 2.6 μm, or the gap in the major axis direction and the gap in the minor axis direction may be formed to be constant.

[0612] At this time, the openings OPr, OPg, OPb of the pixel defining layer 380 and the corresponding second openings OPBMr, OPBMg, OPBMb of the light blocking layer 220 have the same elliptical major axis direction. Due to process errors, etc., the major axis directions of the openings OPr, OPg, OPb of the pixel defining layer 380 and the corresponding second openings OPBMr, OPBMg, OPBMb of the light blocking layer 220 may form an angle in the range from 0 degrees to 20 degrees.

[0613] In ​ it, as in the embodiment of ​ , the colors of the second openings OPBMr, OPBMg, OPBMb of the light blocking layer 220 and the corresponding openings OPr, OPg, OPb of the pixel defining layer 380 are formed as elliptical shapes having different eccentricities for the same color, and the angles formed by the major axes of the second openings OPBMr, OPBMg, OPBMb of the light blocking layer 220 and the corresponding openings OPr, OPg, OPb of the pixel defining layer 380 may have four or more angles, or the angles formed by the major axes may be arranged at an angular interval of 45 degrees or less.

[0614] Based on the embodiment, among the plurality of openings OPr, OPg, OPb of the pixel defining layer 380 or the plurality of second openings OPBMr, OPBMg, OPBMb of the light blocking layer 220, the major axes are spaced apart at equal angular intervals, and may be formed at regular angular intervals or unequal angular intervals.

[0615] In ​ 's embodiment, at least one pair among the plurality of openings OPr, OPg, OPb of the pixel defining layer 380 and the plurality of second openings OPBMr, OPBMg, OPBMb of the light blocking layer 220 has an elliptical shape as shown in ​ , and the gap in the major axis direction is smaller than the gap in the minor axis direction.

[0616] As a result, as described herein, even a high-resolution light-emitting display device can have the advantages of less color separation of external light or a constant diffraction pattern or color separation independent of angle.

[0617] In some embodiments, ​ 's embodiment is an embodiment in which ​ 's elliptical shape of one or two colors is changed to an elliptical shape having an eccentricity in the range of 0 to 0.2, but in addition, in ​ or ​ 's embodiment, alternatively, for two colors, the elliptical shape can be changed to an elliptical shape having an eccentricity between 0 and 0.2.

[0618] In addition, in Figure 26 's embodiment, the elliptical shape of one or two colors can be changed to an elliptical shape having an eccentricity in the range of 0 to 0.2.

[0619] Next, refer to Figure 29 to describe the structure of a unit pixel having another arrangement.

[0620] Figure 29 It is a plan view showing the configuration of a unit pixel in one of the display panels according to an embodiment.

[0621] Figure 29 (A) of shows an example in which a unit pixel is formed by including a red light-emitting region, a green light-emitting region, and a blue light-emitting region.

[0622] Specifically, the red opening OPr, the green opening OPg, and the blue opening OPb of the pixel defining layer 380, and the red second opening OPBMr, the green second opening OPBMg, and the blue second opening OPBMb of the light blocking layer 220 are each included in the unit pixel.

[0623] However, according to an embodiment, as in Figure 29 (B) of, Figure 29 (C) of, and Figure 29 (D) of, the unit pixel may include a total of four light-emitting regions (including two light-emitting regions of a single color).

[0624] Figure 29 (B) of shows a unit pixel including two blue light-emitting regions, Figure 29 (C) of shows a unit pixel including two red light-emitting regions, and Figure 29 (D) of shows a unit pixel including two green light-emitting regions.

[0625] Specifically, Figure 29 the unit pixel in (B) of includes two blue openings OPb of the pixel defining layer 380 and two blue second openings OPBMb of the light blocking layer 220.

[0626] At this time, the two blue openings OPb of the pixel defining layer 380 and the two blue second openings OPBMb of the light blocking layer 220 may have different eccentricities, and the directions of their major axes may also be different.

[0627] In some aspects, Figure 29 the unit pixel in (C) of includes two red openings OPr of the pixel defining layer 380 and two red second openings OPBMr of the light blocking layer 220.

[0628] At this time, the two red openings OPr of the pixel defining layer 380 and the two red second openings OPBMr of the light blocking layer 220 may have different eccentricities, and the directions of their major axes may also be different.

[0629] In some embodiments, Figure 29 the unit pixel in (D) of includes two green openings OPg of the pixel defining layer 380 and two green second openings OPBMg of the light blocking layer 220.

[0630] At this time, the two green openings OPg of the pixel defining layer 380 and the two green second openings OPBMg of the light blocking layer 220 may have different eccentricities, and the directions of their major axes may also be different.

[0631] Figure 29 Each unit pixel of may apply various embodiments or modifications thereof of the previously described ones having a plurality of openings OPr, OPg, OPb of the pixel defining layer 380 and a plurality of second openings OPBMr, OPBMg, OPBMb of the light blocking layer 220.

[0632] Based on the above Figure 7 In the embodiment of, the opening OP of the pixel defining layer 380 and the second opening OPBM of the light blocking layer 220 each have an elliptical shape, and the horizontal gap in each direction is not constant.

[0633] However, based on the embodiment, the second opening OPBM of the light blocking layer 220 may have a shape other than an ellipse, and some of the exemplary embodiments will be described by Figure 30 and Figure 31 to describe some of the exemplary embodiments.

[0634] Figure 30 and Figure 31 is a plan view of a part of a display panel according to another embodiment.

[0635] In Figure 30 and Figure 31 only one opening OP of the pixel defining layer 380 and the corresponding second opening OPBM of the light blocking layer 220 are shown.

[0636] The second opening OPBM of the light blocking layer 220 overlaps the entire opening OP of the pixel defining layer 380.

[0637] However, based on the embodiment, a part of the opening OP of the pixel defining layer 380 may be shielded by the light blocking layer 220.

[0638] Figure 30 shows an embodiment in which the second opening OPBM of the light blocking layer 220 is formed in a circular shape, and the opening OP of the pixel defining layer 380 and the second opening OPBM of the light blocking layer 220 are shown such that the horizontal gap between the opening OP and the second opening OPBM has different values in the major axis direction and the minor axis direction of the opening OP of the pixel defining layer 380, and the horizontal gap in the major axis direction is smaller than the horizontal gap in the minor axis direction.

[0639] In some aspects, the horizontal gap in the diagonal direction corresponding to a direction other than the major axis direction and the minor axis direction of the opening OP of the pixel defining layer 380 may have a value different from the values of the gap in the major axis direction and the gap in the minor axis direction.

[0640] In Figure 30 the embodiment, the horizontal gap in the diagonal direction may be greater than the gap in the major axis direction and may be less than the gap in the minor axis direction.

[0641] In some embodiments, in Figure 31 it is shown an example in which the second opening OPBM of the light blocking layer 220 is formed in a planar shape other than a circular shape or an elliptical shape, and in Figure 31 it, the second opening OPBM of the light blocking layer 220 is formed in a square shape (in other words, the second opening OPBM of the light blocking layer 220 is a square shape). In another embodiment, the second opening OPBM of the light blocking layer 220 may be formed in other polygonal shapes or a circular shape.

[0642] In Figure 31 it, the horizontal gap between the opening OP of the pixel defining layer 380 and the second opening OPBM of the light blocking layer 220 has different values in the major axis direction and the minor axis direction of the opening OP of the pixel defining layer 380, and the horizontal gap in the major axis direction is less than the horizontal gap in the minor axis direction.

[0643] In some aspects, the horizontal gap in the diagonal direction corresponding to a direction other than the major axis direction and the minor axis direction of the opening OP of the pixel defining layer 380 may have a value different from the values of the gap in the major axis direction and the gap in the minor axis direction.

[0644] In Figure 31 the embodiment, the horizontal gap in the diagonal direction may be formed to be greater than the gap in the major axis direction and / or the gap in the minor axis direction.

[0645] In Figure 30 and Figure 31 the embodiments, the difference between the gap in the major axis direction and the gap in the minor axis direction between the opening OP of the pixel defining layer 380 and the second opening OPBM of the light blocking layer 220 may be in the range of 0.1 μm to 2.6 μm. The eccentricity of the opening OP of the pixel defining layer 380 may be in the range of 0.2 to 0.85.

[0646] According to an embodiment, the major axis direction of the opening OP of the pixel defining layer 380 may be arranged in various ways, and the angles formed by the major axis may have four or more angles, and in addition, the angles formed by the major axis may be arranged at an angle interval of 45 degrees or less.

[0647] Based on an embodiment, ellipses having different eccentricities can be formed into a combined shape.

[0648] The eccentricities of two ellipses for combination can vary, and the size of the combined ellipse can also vary.

[0649] In some aspects, based on an embodiment, two ovals having different eccentricities for each color can be combined, and even if the ovals are associated with the same color, two ellipses having different eccentricities can be combined to form various ovals.

[0650] Various variations of Table 1 can also be applied to Figure 30 and Figure 31 the embodiments of.

[0651] As in Figure 30 and Figure 31 the embodiments of, if the horizontal distance between the opening OP of the pixel defining layer 380 and the second opening OPBM of the light blocking layer 220 varies, then Figure 12 the angle at which light is provided from the light emitting layer in can also vary, and if the major axis direction of the opening OP of the pixel defining layer 380 is arranged in various ways, then since various viewing angles are mixed, the embodiments can have the advantages of causing less color separation of external light or having a constant diffraction pattern or color separation independent of the angle.

[0652] Hereinafter, the planar structures of the color filters 230R, 230G, and 230B according to an embodiment will be described in detail with reference to Figure 32 FIGs.

[0653] Figure 32 is a plan view of a display area including color filters according to an embodiment.

[0654] Figure 32 is a view more clearly showing the planar structures of the color filters 230R, 230G, and 230B in the embodiment.

[0655] Referring to Figure 6 which is a cross-sectional view, adjacent color filters 230R, 230G, and 230B have a structure in which they overlap each other on the light blocking layer 220.

[0656] As Figure 32 shown in, the planar structure of such an overlapping region can vary, and one of the planar structures in the embodiment can have a rhombus shape.

[0657] Specifically, each of the color filters 230R, 230G, and 230B covers the corresponding opening OP of the pixel defining layer 380 and the corresponding second opening OPBM of the light blocking layer 220, and has a rhombus shape.

[0658] Reference Figure 32 , the color filters 230R, 230G, and 230B are each shown in different shades, and the boundaries between the adjacent color filters 230R, 230G, and 230B are shown as single lines.

[0659] However, some regions of the actually adjacent color filters 230R, 230G, and 230B may overlap with each other as shown in Figure 6 and the overlapping portion is located at the boundary lines of the color filters 230R, 230G, and 230B in Figure 32 .

[0660] In some aspects, based on the embodiments, a light-blocking region where at least two of the color filters 230R, 230G, and 230B overlap may be formed to replace the light-blocking layer 220.

[0661] Hereinafter, embodiments that do not include a light-blocking layer and include a light-blocking region where at least two of the color filters 230R, 230G, and 230B overlap will be described through Figures 33 to 37 .

[0662] First, observe the modified structure of Figure 33 and Figure 34 . Figure 6

[0663] Figure 33 and Figure 34 are schematic cross-sectional views of a display panel according to another embodiment.

[0664] Hereinafter, first, observe the structure of the light-emitting display panel DP according to the embodiments with reference to Figure 33 , and descriptions of parts that are the same as those in Figure 6 will be omitted.

[0665] According to Figure 33 , the light-emitting display panel DP can display an image by forming light-emitting diodes on the substrate 110, and can detect a touch by including a plurality of sensing electrodes 540 and 541. The light emitted from the light-emitting display panel DP including the color filters 230R, 230G, and 230B also has the color characteristics of the color filters 230R, 230G, and 230B.

[0666] In some embodiments, a black light-blocking layer that blocks visible light may not be formed, and instead of the light-blocking layer, at least two color filters may be overlapped to block visible light.

[0667] The region where visible light is blocked by overlapping at least two color filters is called a light-blocking region, and in Figure 33In the embodiment, the blue color filter 230B, the red color filter 230R, and the green color filter 230G are sequentially stacked.

[0668] The order of stacking the color filters may vary based on the embodiment.

[0669] In some aspects, according to Figure 33 the embodiment, a polarizer is not formed on the front surface of the light-emitting display panel DP. Instead, the pixel defining layer 380 is formed of a black organic material, and a light-blocking region where two or more color filters overlap is formed on the upper portion of the pixel defining layer 380, such that even if external light enters the interior, the light is reflected from the anode Anode or the like and is not transmitted to the user.

[0670] Specifically, the color filters 230R, 230G, and 230B are located on the third sensing insulating layer 511.

[0671] The color filters 230R, 230G, 230B include a red color filter 230R that transmits red light, a green color filter 230G that transmits green light, and a blue color filter 230B that transmits blue light.

[0672] Each of the color filters 230R, 230G, and 230B may be positioned to overlap the anode Anode of the light-emitting diode in a plane.

[0673] Since the light emitted from the light-emitting layer EML can become the corresponding color when passing through the color filter, all the light emitted from the light-emitting layer EML can have the same color.

[0674] However, the light-emitting layer EML may emit light of different colors, and the displayed color can be enhanced by passing through the color filter of the same color.

[0675] Based on the embodiment, the color filters 230R, 230G, and 230B may be replaced with a color conversion layer or may further include a color conversion layer.

[0676] The color conversion layer may include quantum dots.

[0677] In Figure 33 the embodiment, a black light-blocking layer that blocks visible light is not formed, and a light-blocking region formed by overlapping at least two color filters is formed instead of the light-blocking layer.

[0678] In Figure 33 the embodiment, the light-blocking region includes the blue color filter 230B, the red color filter 230R, and the green color filter 230G that are sequentially stacked.

[0679] The order of stacking the color filters may vary based on the embodiment.

[0680] The light-blocking regions where at least two color filters overlap can be positioned to overlap with the sensing electrodes 540 and 541 in a plane and can be positioned not to overlap with the anode Anode in the plane.

[0681] This is to ensure that the anode Anode and the light-emitting layer EML capable of displaying an image are not blocked by the light-blocking regions and the sensing electrodes 540 and 541.

[0682] Reference Figure 33 , the light-blocking regions of the color filters with three overlapping color filters are only located in the regions that overlap with the pixel defining layer 380 in a plane, and one side of the light-blocking regions of the color filters is indented inward from the corresponding side of the pixel defining layer 380.

[0683] The regions with one color filter provided in the regions not including the light-blocking regions transmit light of the color of the one color filter, so these regions can form the light-transmitting regions of the color filters.

[0684] Hereinafter, the light-transmitting regions of the color filters with only one color filter provided are also referred to as the second openings OPCF of the light-blocking regions because light is transmitted therethrough.

[0685] In some aspects, the second openings OPCF of the light-blocking regions are openings provided in the light-blocking regions where at least two color filters overlap and correspond to the light-transmitting regions of the color filters with only one color filter provided.

[0686] In some embodiments, the second openings OPCF of the light-blocking regions of the color filters can correspond to the second openings OPBM of the light-blocking layer 220 described herein.

[0687] The area of the second openings OPCF in the light-blocking regions is formed to be larger than the area of the openings OP of the pixel defining layer 380, and in a plane, the openings OP of the pixel defining layer 380 can be located within the second openings OPCF of the light-blocking regions.

[0688] Reference Figure 33 , a gap gap between one side of the pixel defining layer 380 and one side of the light-blocking region is shown, and in a plan view, one side of the pixel defining layer 380 has a structure protruding outward by the gap gap from the corresponding side of the light-blocking region.

[0689] In some embodiments, the gap gap can be the same as the gap between the openings OP of the pixel defining layer 380 and the second openings OPCF of the light-blocking regions.

[0690] In some aspects, one side of the spacer 385 is configured to be indented inward by a specific distance g1 from the corresponding side of the pixel defining layer 380, and one side of the spacer 385 is also configured to be indented inward from the corresponding side of the light blocking region.

[0691] As a result, when viewed from the front of the display panel DP, the spacer 385 can be shielded by the light blocking region and can be invisible.

[0692] When external light is incident, the external light can pass through the second opening OPCF of the light blocking region of the color filter and is then reflected on the sidewall of the opening OP of the pixel defining layer 380.

[0693] The sidewall of the opening OP of the pixel defining layer 380 is curved and color separation occurs depending on the position of the reflection, such that the reflected light can appear in various colors such as a rainbow.

[0694] Since this reflected light after color separation can be easily seen by the user and deteriorate the display quality, in the above embodiment, the second opening OPBM of the light blocking layer 220 is changed to the second opening OPCF of the light blocking region of the color filter and can be alternatively applied.

[0695] That is, at least one of the second opening OPCF of the light blocking region of the color filter and the opening OP of the pixel defining layer 380 is formed in an oval shape, and the oval direction or eccentricity of the oval shape is configured in various ways to reduce color separation or allow white reflected light to be visible.

[0696] In some aspects, based on the embodiment, at least one opening can be formed to have a shape similar to an oval rather than an oval, and its direction or eccentricity can be changed in various ways.

[0697] In some aspects, various modifications to the second opening OPBM of the previously described light blocking layer 220 and the corresponding opening OP of the pixel defining layer 380 can be used to form the second opening OPCF of the light blocking region of the color filter.

[0698] The planarization layer 550 covering the color filters 230R, 230G, and 230B is located on the color filters 230R, 230G, and 230B.

[0699] The planarization layer 550 is used to planarize the upper surface of the light emitting display panel DP and can be a transparent organic insulating layer including one or more materials selected from the group consisting of polyimide, polyamide, acrylic resin, benzocyclobutene, and phenolic resin.

[0700] Based on the embodiments, the low refractive index layer and the additional planarization layer can be further positioned on the planarization layer 550 to improve the front visibility and light output efficiency of the display panel DP.

[0701] Light can be refracted by the low refractive index layer and the additional planarization layer having high refractive characteristics and emitted toward the front.

[0702] In this case, based on the embodiments, the planarization layer 550 can be omitted, and the low refractive index layer and the additional planarization layer can be directly located on the color filter.

[0703] In such an embodiment, a polarizer is not included on top of the planarization layer 550.

[0704] In other words, when external light is incident and reflected by the anode Anode or the sidewall of the opening OP of the pixel defining layer 380 and is visible to the user, the polarizer can prevent the display quality from deteriorating.

[0705] However, the polarizer has the disadvantage of consuming more power to display a specific brightness by not only reducing the reflection of external light but also reducing the light emitted from the light emitting layer EML.

[0706] To reduce power consumption, the light emitting display device of such an embodiment may not include a polarizer.

[0707] In some aspects, in such an embodiment, the side portion of the anode Anode is covered by the pixel defining layer 380 to reduce the degree of reflection from the anode Anode, and at least two overlapping color filters are also formed to form a light blocking region to prevent light from entering. Such an embodiment already includes a structure for reducing the degree of incident light and preventing the deterioration of display quality due to reflection.

[0708] Therefore, according to Figure 33 the exemplary embodiments, a light emitting display panel DP can be realized without separately forming a polarizer on the front of the light emitting display panel DP.

[0709] In Figure 33 the example, the light blocking region overlapping at least two color filters focuses on the example of overlapping three color filters.

[0710] However, based on the embodiments, the light blocking region of the color filter can be formed by overlapping two color filters, as shown in Figure 34 which is shown in

[0711] Figure 34 is a diagram corresponding to Figure 6 and Figure 33 Only the color filters 230R, 230G, and 230B are different from the color filters 230R, 230G, and 230B in Figure 33 and the structure below the third sensing insulating layer 511 is the same as that inFigure 33 The structure below the third sensing insulating layer 511 in

[0712] Hereinafter, with reference to Figure 34 will be described aspects of the structure above the third sensing insulating layer 511 that are different from the structure above the third sensing insulating layer 511 in Figure 33

[0713] Reference is made to Figure 34 , a light-blocking layer that blocks visible light is not formed, and the blue color filter 230B and the red color filter 230R are sequentially stacked to block visible light.

[0714] The order of stacking the color filters may vary based on the embodiment.

[0715] Specifically, the light-blocking region where the two color filters overlap includes the blue color filter 230B and the red color filter 230R, and the green color filter 230G overlaps in some regions of the light-blocking region of the color filters.

[0716] However, different from the embodiment of Figure 33 , the green color filter 230G is not formed in the entire light-blocking region of the color filters, and the light-blocking region of the color filters is formed using only two color filters.

[0717] The light-blocking region where the two color filters overlap is only located in the region that overlaps the pixel defining layer 380 in the plane, and one side of the light-blocking region of the color filters is indented inward from the corresponding side of the pixel defining layer 380.

[0718] Only one color filter may be located in the region other than the light-blocking region of the color filters, and the light of the color of the color filter is transmitted to form a light-transmitting region of the color filters or a second opening OPCF of the light-blocking region of the color filters.

[0719] The area of the second opening OPCF is formed to be larger than the area of the opening OP of the pixel defining layer 380, and in the plane, the opening OP of the pixel defining layer 380 may be located within the second opening OPCF in the light-blocking region of the color filters.

[0720] In addition to the pixel defining layer 380, the light-blocking region of the color filters also overlaps the spacer 385 and the plurality of sensing electrodes 540 and 541 in the plane.

[0721] Specifically, one side of the light-blocking region of the color filters is positioned to be indented inward by a gap gap from the corresponding side of the pixel defining layer 380, and one side of the spacer 385 is positioned to be indented inward from the corresponding side of the light-blocking region of the color filters.

[0722] ​In some aspects, the plurality of sensing electrodes 540 and 541 are also covered by the light-blocking regions of the color filters on a plane.

[0723] As a result, when viewed from the front of the display panel DP, the spacer 385 and the plurality of sensing electrodes 540 and 541 may be invisible because they are shielded by the light-blocking regions of the color filters.

[0724] Based on the embodiments, the color filters 230R, 230G, and 230B may be replaced by color conversion layers or may further include color conversion layers.

[0725] The color conversion layer may include quantum dots.

[0726] Having the cross-sectional structure as shown in Figure 34 The embodiments may have a planar structure as shown in Figure 35 and Figure 36 shown.

[0727] First, the planar structures of each of the color filters 230R, 230G, and 230B will be described by Figure 35 FIGs.

[0728] Figure 35 is a plan view showing the color filters in the display area according to another embodiment.

[0729] Figure 35 (A) of shows the layer in which the blue color filter 230B is formed, and the portion where the blue color filter 230B is provided is shaded.

[0730] In some embodiments, the remaining layers are shown by dashed lines in Figure 35 .

[0731] Based on Figure 35 (A) of, the blue color filter 230B is located in the light-blocking region and the blue transmission region through which blue light is transmitted, and is not formed in the red transmission region and the green transmission region.

[0732] In some aspects, Figure 35 (B) of shows the layer in which the red color filter 230R is formed, and the portion where the red color filter 230R is provided is shaded.

[0733] In some embodiments, the remaining layers are shown by dashed lines in Figure 35 .

[0734] Based on Figure 35 (B) of, the red color filter 230R is located in the light-blocking region and the red transmission region through which red light is transmitted, and is not formed in the blue transmission region and the green transmission region.

[0735] In some embodiments, Figure 35 (C) of Figure 35 shows the layer in which the green color filter 230G is formed, and a shadow is drawn at the portion where the green color filter 230G is provided.

[0736] In some embodiments, in Figure 35 the remaining layers are shown by dashed lines.

[0737] Based on Figure 35 (C) of Figure 35 , the green color filter 230G is formed in an island structure and is located only in the green transmission region where green light is transmitted therethrough, and is not formed in the light blocking region and the red and blue transmission regions.

[0738] In some embodiments, the green color filter 230G may overlap with some of the light blocking regions of the color filters.

[0739] By overlapping Figure 35 (A), (B), and (C) of Figure 35 , the planar structure shown in Figure 36 can be obtained.

[0740] Figure 36 is a plan view of a part of a display panel according to another embodiment.

[0741] Figure 36 is Figure 15 a corresponding plan view. Different from the embodiment of Figure 15 , the light blocking region is formed by overlapping two or more color filters instead of a light blocking layer, and the green color filter 230G has an island structure.

[0742] Here, the boundary of the green color filter 230G is further shown outside the green second opening OPCFg among the second openings OPCFr, OPCFg, and OPCFb of the color filter, such that the green color filter 230G has an island structure, and in the green color filter 230G, it is clearly shown that the above boundary partially overlaps with the light blocking region of the color filter.

[0743] In Figure 36 , the red color filter 230R and the blue color filter 230B are each located in the light blocking region, but the shadows corresponding to the red color filter 230R and the blue color filter 230B are not shown in the light blocking region, and instead, "230B / 230R" clearly indicates the position where the light blocking region is located where the blue color filter 230B and the red color filter 230R are located.

[0744] Next, with reference to Figure 37 it is described whether two color filters can be stacked to replace the function of the light blocking layer.

[0745] Figure 37It is a graph showing the transmittance according to the wavelength of the color filter.

[0746] In Figure 37 The graph shows the transmittance of the wavelength of each color filter 230R, 230G, 230B. Therefore, light within the wavelength range with high transmittance is transmitted.

[0747] Referring to Figure 37 it can be confirmed that each of the color filters 230R, 230G, 230B has a transmittance of less than 10% for the part other than the band passing through the color filter, and there is almost no existing band passing through when three or two color filters overlap.

[0748] Therefore, it can be confirmed that by overlapping at least two color filters, they can replace the function of the light blocking layer by overlapping three color filters as in Figure 33 or by overlapping two color filters as in Figures 34 to 36 .

[0749] Will be described in more detail the stacked structure of the display area DA and the first component area EA1 through Figure 38 and Figure 39 .

[0750] Figure 38 and Figure 39 are cross-sectional views of a light-emitting display device according to an embodiment.

[0751] Figure 38 shows an embodiment including a light blocking layer 220, and Figure 39 shows an embodiment in which a light blocking region of the color filter is formed by overlapping a blue color filter 230B and a red color filter 230R to replace the light blocking layer 220.

[0752] First, aspects of the embodiment of Figure 38 will be described in detail herein.

[0753] The light-emitting display device can be mainly divided into a lower panel layer and an upper panel layer. The lower panel layer is the location where the light-emitting diodes and pixel circuit units constituting the pixels are located, and may even include a packaging layer 400 covering the pixels.

[0754] Here, the pixel circuit unit includes a second organic layer 182, a third organic layer 183, and a part below the second organic layer 182, while the light-emitting diodes are disposed between the third organic layer 183 and the packaging layer 400.

[0755] The structure located on top of the packaging layer 400 can correspond to the upper panel layer.

[0756] Referring to Figure 38 a metal layer BML is located on the substrate 110.

[0757] The substrate 110 may include a material having rigid properties and not bendable such as, for example, glass, or may include a flexible material that can be bent such as, for example, plastic or polyimide.

[0758] In the case of a flexible substrate, as Figure 38 shown, the flexible substrate may have a double-layer structure of polyimide and a barrier layer formed of an inorganic insulating material thereon.

[0759] The metal layer BML may be formed at a position overlapping the channel of the driving transistor among the subsequent first semiconductor layer ACT (P-Si) in a plane, and is also referred to as a lower shielding layer.

[0760] The metal layer BML may include a metal or metal alloy such as, for example, copper (Cu), molybdenum (Mo), aluminum (Al), or titanium (Ti).

[0761] The buffer layer 111 covering the substrate 110 and the metal layer BML is located on the substrate 110.

[0762] The buffer layer 111 is used to prevent impurity elements from penetrating into the first semiconductor layer ACT (P-Si), and may be an inorganic insulating layer including silicon oxide (SiO x ), silicon nitride (SiN x ), or silicon oxynitride (SiO x N y ).

[0763] The first semiconductor layer ACT (P-Si) formed of a silicon semiconductor (for example, a polysilicon semiconductor (P-Si)) is located on the buffer layer 111.

[0764] The first semiconductor layer ACT (P-Si) includes a channel of a polycrystalline transistor LTPS TFT including a driving transistor and a first region and a second region on both sides of the channel of the polycrystalline transistor LTPS TFT.

[0765] Here, the polycrystalline transistor LTPS TFT may include not only a driving transistor but also various switching transistors or compensation transistors.

[0766] In some aspects, the first semiconductor layer ACT (P-Si) has regions on both sides of the channel that have conductive layer characteristics through plasma treatment or doping and can be used as the first electrode and the second electrode of the transistor.

[0767] The first gate insulating layer 141 may be positioned on the first semiconductor layer ACT (P-Si).

[0768] The first gate insulating layer 141 may be an insulating layer including silicon oxide (SiOx )), silicon nitride (SiN x ), or silicon oxynitride (SiO x N y ).

[0769] The first gate conductive layer including the gate electrode GAT1 of the polycrystalline transistor LTPS TFT may be positioned on the first gate insulating layer 141.

[0770] In addition to the gate electrode GAT1 of the polycrystalline transistor LTPS TFT, the first gate conductive layer may form a first scan line or an emission control line.

[0771] The first gate conductive layer may include a metal or metal alloy such as, for example, copper (Cu), molybdenum (Mo), aluminum (Al), or titanium (Ti), and may be composed of a single layer or multiple layers.

[0772] After forming the first gate conductive layer, a plasma treatment or doping process may be performed to make the exposed area of the first semiconductor layer ACT (P-Si) conductive.

[0773] That is, the first semiconductor layer ACT (P-Si) covered by the first gate conductive layer is non-conductive, and the portion of the first semiconductor layer ACT (P-Si) not covered by the first gate conductive layer is conductive and may have the same characteristics as the conductive layer.

[0774] The second gate insulating layer 142 may be positioned on the first gate conductive layer and the first gate insulating layer 141.

[0775] The second gate insulating layer 142 may be an inorganic insulating layer containing silicon oxide (SiO x ), silicon nitride (SiN x ), or silicon oxynitride (SiO x N y ).

[0776] The second gate conductive layer including one electrode GAT2 (Cst) of the sustain capacitor Cst and the lower shielding layer GAT2 (BML) of the oxide transistor Oxide TFT will be located on the second gate insulating layer 142.

[0777] The lower shielding layer GAT2 (BML) of the oxide transistor Oxide TFT is located at the bottom of the channel of each oxide transistor Oxide TFT and is used to shield light or electromagnetic interference provided to the channel from the bottom.

[0778] In some embodiments, one electrode GAT2 (Cst) of the sustain capacitor Cst overlaps with the gate electrode GAT1 of the driving transistor to form the sustain capacitor Cst.

[0779] Based on the embodiments, the second gate conductive layer may further include a scan line, a control line, or a voltage line.

[0780] The second gate conductive layer may include a metal or metal alloy such as, for example, copper (Cu), molybdenum (Mo), aluminum (Al), or titanium (Ti), and may be composed of a single layer or multiple layers.

[0781] The first interlayer insulating layer 161 may be positioned on the second gate conductive layer.

[0782] The first interlayer insulating layer 161 may include an inorganic insulating layer containing silicon oxide (SiO x ), silicon nitride (SiN x ), or silicon oxynitride (SiO x N y ). Based on the embodiments, the inorganic insulating material may be formed thickly.

[0783] The oxide semiconductor layer ACT2 (IGZO) including the channel, the first region, and the second region of the oxide transistor Oxide TFT may be located on the first interlayer insulating layer 161.

[0784] The third gate insulating layer 143 may be located on the oxide semiconductor layer ACT2 (IGZO).

[0785] The third gate insulating layer 143 may be located on the entire surface of the oxide semiconductor layer ACT2 (IGZO) and the first interlayer insulating layer 161.

[0786] The third gate insulating layer 143 may include an inorganic insulating layer containing silicon oxide (SiO x ), silicon nitride (SiN x ), or silicon oxynitride (SiO x N y ).

[0787] The third gate conductive layer GAT3 including the gate electrode of the oxide transistor Oxide TFT may be positioned on the third gate insulating layer 143.

[0788] The gate electrode of the oxide transistor Oxide TFT may overlap with the channel.

[0789] The third gate conductive layer GAT3 may further include a scan line or a control line, and may additionally include a connection electrode connected to the lower shielding layer GAT2 (BML) of the oxide transistor Oxide TFT.

[0790] The third gate conductive layer GAT3 may contain a metal or metal alloy such as, for example, copper (Cu), molybdenum (Mo), aluminum (Al), or titanium (Ti), and may be composed of a single layer or multiple layers.

[0791] The second interlayer insulating layer 162 may be positioned on the third gate conductive layer GAT3.

[0792] The second interlayer insulating layer 162 may have a single-layer or multi-layer structure.

[0793] The second interlayer insulating layer 162 may include inorganic insulating materials such as, for example, silicon nitride (SiN x ), silicon oxide (SiO x ), or silicon oxynitride (SiO x N y ), and / or may include organic materials based on the embodiments.

[0794] The first data conductive layer SD1 is positioned on the second interlayer insulating layer 162 and includes connection electrodes that may connect to the first region and the second region of each of the polycrystalline transistor LTPS TFT and the oxide transistor Oxide TFT.

[0795] The first data conductive layer SD1 may include metals or metal alloys such as, for example, aluminum (Al), copper (Cu), molybdenum (Mo), and titanium (Ti), and may be composed of a single layer or multiple layers.

[0796] The first organic layer 181 may be positioned on the first data conductive layer SD1.

[0797] The first organic layer 181 may be an organic insulating layer containing organic materials, and the organic materials include one or more materials selected from the group consisting of polyimide, polyamide, acrylic resin, benzocyclobutene, and phenolic resin.

[0798] The second data conductive layer including the anode connection electrode ACM2 may be positioned on the first organic layer 181.

[0799] The second data conductive layer may include data lines or driving voltage lines.

[0800] The second data conductive layer may include metals or metal alloys such as, for example, aluminum (Al), copper (Cu), molybdenum (Mo), or titanium (Ti), and may be composed of a single layer or multiple layers.

[0801] The second organic layer 182 and the third organic layer 183 are located above the second data conductive layer, and an anode connection opening OP4 is formed in the second organic layer 182 and the third organic layer 183.

[0802] The anode connection electrode ACM2 is electrically connected to the anode Anode through the anode connection opening OP4.

[0803] The second organic layer 182 and the third organic layer 183 may be organic insulating layers, and may include one or more materials selected from the group consisting of polyimide, polyamide, acrylic resin, benzocyclobutene, and phenolic resin.

[0804] Based on the embodiment, the third organic layer 183 may be omitted.

[0805] The pixel defining layer 380 may be positioned on the anode Anode, and have an opening OP exposing the anode Anode and covering at least a part of the anode Anode.

[0806] The pixel defining layer 380 may be a black pixel defining layer formed of a black organic material to prevent externally applied light from being reflected back to the outside. Based on the embodiment, the pixel defining layer 380 may be formed of a transparent organic material.

[0807] Thus, based on the embodiment, the pixel defining layer 380 may include a negative black organic material and a black pigment.

[0808] The spacer 385 is located on the pixel defining layer 380.

[0809] The spacer 385 may include a first part 385-1 that is tall and located in a narrow region and a second part 385-2 that is short and located in a wide region.

[0810] Different from the pixel defining layer 380, the spacer 385 may be formed of a transparent organic insulating material.

[0811] Based on the embodiment, the spacer 385 may be formed of a positive transparent organic material.

[0812] The pixel defining layer 380, the spacer 385, the functional layer FL, and the cathode Cathode are sequentially formed on the anode Anode, and are sequentially formed in the display area DA and the first component area EA1, while the functional layer FL and the cathode Cathode may be located in all areas.

[0813] The light emitting layer EML is located between the respective functional layers FL, and the light emitting layer EML may be located only within the opening OP of the pixel defining layer 380.

[0814] Hereinafter, the functional layer FL and the light emitting layer EML may be combined and referred to as an intermediate layer.

[0815] The functional layer FL may include at least one auxiliary layer such as, for example, an electron injection layer, an electron transport layer, a hole transport layer, and a hole injection layer. The hole injection layer and the hole transport layer may be located below the light emitting layer EML, and the electron transport layer and the electron injection layer may be located above the light emitting layer EML.

[0816] The encapsulation layer 400 is located on the cathode Cathode.

[0817] The encapsulation layer 400 includes at least one inorganic layer and at least one organic layer, and based on an embodiment, the encapsulation layer 400 may have a three-layer structure including a first inorganic encapsulation layer, an organic encapsulation layer, and a second inorganic encapsulation layer.

[0818] The encapsulation layer 400 can be used to protect the light-emitting layer EML from moisture or oxygen that may enter from the outside.

[0819] Based on an embodiment, the encapsulation layer 400 may include a structure in which an inorganic layer and an organic layer are further sequentially stacked therein.

[0820] The sensing insulating layers 501, 510, 511 and the plurality of sensing electrodes 540, 541 are positioned on the encapsulation layer 400 for touch detection.

[0821] In Figure 38 an embodiment, two sensing electrodes 540 and 541 can be used to sense touch in a mutual capacitance manner.

[0822] Specifically, the first sensing insulating layer 501 is formed on the encapsulation layer 400, and the plurality of sensing electrodes 540 and 541 are formed on the first sensing insulating layer 501.

[0823] The plurality of sensing electrodes 540 and 541 can be insulated by a second sensing insulating layer 510 between the sensing electrodes 540 and 541, and some of the sensing electrodes 540 and 541 can be electrically connected through openings located in the second sensing insulating layer 510.

[0824] Here, the sensing electrodes 540 and 541 are formed of a metal or metal alloy such as, for example, aluminum (Al), copper (Cu), silver (Ag), gold (Au), molybdenum (Mo), titanium (Ti), and tantalum (Ta), and the sensing electrodes 540 and 541 may include a single layer or multiple layers.

[0825] The third sensing insulating layer 511 is formed on the sensing electrode 540.

[0826] The light-blocking layer 220 and the color filter 230 are positioned on the third sensing insulating layer 511.

[0827] The light-blocking layer 220 can be positioned to overlap the sensing electrodes 540 and 541 in a plane.

[0828] The light-blocking layer 220 has a second opening OPBM, and the second opening OPBM of the light-blocking layer 220 overlaps the opening OP of the pixel defining layer 380 in a plane.

[0829] In some aspects, the second opening OPBM of the light blocking layer 220 may be formed wider than the opening OP of the pixel defining layer 380.

[0830] As a result, the anode Anode overlapping with (i.e., exposed by) the opening OP of the pixel defining layer 380 is also exposed by the light blocking layer 220 in a plane.

[0831] This is to ensure that the anode Anode and the light emitting layer EML capable of displaying an image are not shielded by the light blocking layer 220 and the sensing electrodes 540 and 541.

[0832] In some aspects, the light blocking layer 220 has a structure that overlaps with the anode connection opening OP4 in a plane but does not overlap with the opening OP3 of the first organic layer 181 in a plane.

[0833] As Figure 6 shown, the color filters 230R, 230G, and 230B are positioned on the sensing insulating layers 501, 510, and 511 and the light blocking layer 220.

[0834] Based on the embodiment, the color filters 230R, 230G, and 230B may be replaced with color conversion layers or may further include color conversion layers.

[0835] The color conversion layer may include quantum dots.

[0836] The planarization layer 550 may be positioned on the color filters 230R, 230G, and 230B and may cover the color filters 230R, 230G, and 230B. Based on the embodiment, the planarization layer 550 may be used to improve the front visibility and light output efficiency of the display device, and a low refractive index layer and an additional planarization layer may be further located on top of the planarization layer 550.

[0837] Light may be refracted by the low refractive index layer and the additional planarization layer having a high refractive index characteristic and emitted toward the front.

[0838] In this case, based on the embodiment, the planarization layer 550 may be omitted, and the low refractive index layer and the additional planarization layer may be directly located on the color filter 230.

[0839] In this embodiment, a polarizer is not included on top of the planarization layer 550.

[0840] In other words, when external light is incident and reflected by the anode Anode etc. and visible to the user, the polarizer may function to prevent deterioration of the display quality.

[0841] However, in this embodiment, the side portion of the anode is covered by the pixel defining layer 380 to reduce the degree of reflection from the anode, and the light blocking layer 220 is also formed to reduce the degree of incident light, thereby reducing the amount of light incident on the anode, and this embodiment already includes a structure for preventing deterioration of display quality.

[0842] Therefore, according to Figure 38 the exemplary embodiment, a display panel DP can be implemented without separately forming a polarizer on the front surface of the display panel DP.

[0843] In some embodiments, in Figure 38 in addition to the stacked structure of the display area DA, a cross-sectional structure of the first component area EA1 formed to allow light to transmit to a part of the display area DA is also shown.

[0844] In Figure 38 the first component area EA1 is divided into a first optical sensor area OPS1 (also referred to as a transmissive optical sensor area) and a second optical sensor area OPS2 (also referred to as a non-transmissive optical sensor area).

[0845] Here, the first optical sensor area OPS1 is an area formed such that light can pass through, and each additional opening OP-1, OPBM-1 is arranged not to overlap with the pixel defining layer 380 and the light blocking layer 220 in a plane.

[0846] On the contrary, the second optical sensor area OPS2 is an area formed to overlap with the pixel defining layer 380 and the light blocking layer 220 in a plane so that light does not pass through there.

[0847] Both the first optical sensor area OPS1 and the second optical sensor area OPS2 of the first component area EA1 may not include a light blocking layer such as a metal layer or a semiconductor layer.

[0848] For reference, the first optical element ES1 (refer to Figure 2 ) is located on the back surface of the first component area EA1, and the front surface of the light-emitting display device can be detected through the first optical sensor area OPS1 located in the first component area EA1.

[0849] Specifically, the stacked structure of the first component area EA1 is as follows.

[0850] The buffer layer 111, which is an inorganic insulating layer, is positioned on the substrate 110, and the first gate insulating layer 141 and the second gate insulating layer 142, which are inorganic insulating layers, are sequentially positioned on the buffer layer 111.

[0851] In some aspects, the first interlayer insulating layer 161, which is an inorganic insulating layer, the third gate insulating layer 143, and the second interlayer insulating layer 162 are sequentially stacked on the second gate insulating layer 142.

[0852] The first organic layer 181, the second organic layer 182, and the third organic layer 183, which are organic insulating layers, are sequentially stacked on the second interlayer insulating layer 162.

[0853] The functional layer FL can be located on the third organic layer 183, and the cathode Cathode can be located on the third organic layer 183.

[0854] The encapsulation layer 400 is positioned on the cathode Cathode, and the sensing insulating layers 501, 510, and 511 are sequentially positioned on top of the cathode Cathode.

[0855] The encapsulation layer 400 can have a three-layer structure sequentially including a first inorganic encapsulation layer, an organic encapsulation layer, and a second inorganic encapsulation layer.

[0856] In some aspects, the sensing insulating layers 501, 510, and 511 can all be inorganic insulating layers.

[0857] The planarization layer 550 can be positioned on the sensing insulating layers 501, 510, and 511.

[0858] In the first component region EA1 described herein, the metal layer, the first semiconductor layer, the first gate conductive layer, the second gate conductive layer, the oxide semiconductor layer, the third gate conductive layer, the first data conductive layer, the second data conductive layer, and the anode are not located therein.

[0859] In some aspects, the light-emitting layer EML and the sensing electrodes 540 and 541 are not formed.

[0860] In some aspects, in the first optical sensor region OPS1 of the first component region EA1, additional openings OP-1 and OPBM-1 are formed in the pixel definition layer 380 and the light-blocking layer 220, respectively, such that the pixel definition layer 380 and the light-blocking layer 220 can be not formed.

[0861] As a result, light can pass through the first optical sensor region OPS1.

[0862] In contrast, the second optical sensor region OPS2 of the first component region EA1 does not have the additional openings OP-1 and OPBM-1, so the second optical sensor region OPS2 overlaps with the pixel definition layer 380 and the light-blocking layer 220. The second optical sensor region OPS2 can have an opaque structure.

[0863] In the foregoing, embodiments in which a total of three organic layers are formed and anode connection openings are formed in the second and third organic layers have been described.

[0864] However, embodiments of the present disclosure are not limited thereto, and in another embodiment, at least two organic layers may be formed, and in such an embodiment, the anode connection opening may be located in the upper organic layer positioned away from the substrate, and the lower organic layer opening may be located in the lower organic layer.

[0865] In some embodiments, hereinafter, reference is made to Figure 39 Embodiments are described in which a light-blocking region of a color filter is formed by overlapping a blue color filter 230B and a red color filter 230R instead of the light-blocking layer 220.

[0866] In Figure 39 , the third sensing insulating layer 511 and the structure therebelow are the same as those in Figure 38 , so only the structure above the third sensing insulating layer 511 that is different from Figure 38 is described in detail as follows.

[0867] Color filters 230R, 230G, and 230B are located on the third sensing insulating layer 511.

[0868] In Figure 39 's embodiment, the light-blocking layer is not included, and the function of the light-blocking layer is performed by the overlapping color filters 230R and 230B, and the overlapping color filters 230R and 230B may be positioned to overlap the sensing electrodes 540 and 541 in a plane.

[0869] The overlapping color filters 230R and 230B have a second opening OPCF, and the second opening OPCF of the overlapping color filters 230R and 230B overlaps the opening OP of the pixel defining layer 380 in a plane.

[0870] In some aspects, the second opening OPCF of the overlapping color filters 230R and 230B may be formed wider than the opening OP of the pixel defining layer 380.

[0871] As a result, the anode Anode that overlaps (i.e., is exposed by) the opening OP of the pixel defining layer 380 also overlaps the color filters 230R and 230B, so it is possible to have a structure that is not shielded in a plan view.

[0872] This is to ensure that the anode Anode and the light-emitting layer EML capable of displaying an image are not shielded by the overlapping color filters 230R and 230B and the sensing electrodes 540 and 541.

[0873] In some aspects, the overlapping color filters 230R and 230B have a structure that overlaps with the anode connection opening OP4 on a plane.

[0874] One color filter can be located within the second opening OPCF of the overlapping color filters 230R and 230B, and Figure 39 in it, the green color filter 230G is located.

[0875] Based on the embodiment, the color filters 230R, 230G, and 230B can be replaced with color conversion layers, or can further include color conversion layers.

[0876] The color conversion layer can include quantum dots.

[0877] The planarization layer 550 covering the color filters 230R, 230G, and 230B is positioned on the color filters 230R, 230G, and 230B, and a low refractive index layer and an additional planarization layer can be further positioned on top of the planarization layer 550 to improve the front visibility and light emission efficiency of the display device.

[0878] Based on the embodiment, the planarization layer 550 can be omitted, and the low refractive index layer and the additional planarization layer can be directly located on the color filters.

[0879] In Figure 39 the embodiment, a polarizer is not included on top of the planarization layer 550.

[0880] In other words, when external light is incident and reflected by the anode Anode etc. and is visible to the user, the polarizer can play a role in preventing deterioration of the display quality.

[0881] However, in this embodiment, the side portion of the anode Anode is covered by the pixel defining layer 380 to reduce the degree of reflection from the anode Anode, and the overlapping color filters 230R and 230B are also formed to reduce the degree of incident light. In short, this embodiment already includes a structure for preventing deterioration of the display quality due to reflection.

[0882] Therefore, according to Figure 39 the example embodiment, a display panel DP can be realized without separately forming a polarizer on the front of the display panel DP.

[0883] In some embodiments, according to Figure 39 the embodiment, the cross-sectional structure of the first component region EA1 can be as follows.

[0884] The first component region EA1 is divided into a first optical sensor region OPS1 and a second optical sensor region OPS2.

[0885] Here, the first optical sensor region OPS1 is a region formed such that light can pass through, wherein each additional opening OP-1, OPCF-1 is arranged not to overlap, in a plane, with the pixel defining layer 380 and the light blocking region of the color filter formed by overlapping at least two color filters.

[0886] Conversely, the second optical sensor region OPS2 is formed as a region that prevents light from passing through by overlapping the pixel defining layer 380 and the light blocking region of the color filter formed by overlapping at least two color filters in a plane.

[0887] Both the first optical sensor region OPS1 and the second optical sensor region OPS2 of the first component region EA1 may not include a light blocking layer such as, for example, a metal layer or a semiconductor layer.

[0888] For reference, the first optical element ES1 (reference Figure 2 ) is located on the back surface of the first component region EA1, and can detect the front surface of the light emitting display device through the first optical sensor region OPS1 located in the first component region EA1.

[0889] Specifically, the stack structure of the first component region EA1 is as follows.

[0890] The buffer layer 111, which is an inorganic insulating layer, is positioned on the substrate 110, and the first gate insulating layer 141 and the second gate insulating layer 142, which are inorganic insulating layers, are sequentially positioned on the buffer layer 111.

[0891] In some aspects, the first interlayer insulating layer 161, the third gate insulating layer 143, and the second interlayer insulating layer 162, which are inorganic insulating layers, are sequentially stacked on the second gate insulating layer 142.

[0892] The first organic layer 181, the second organic layer 182, and the third organic layer 183, which are organic insulating layers, are sequentially stacked on the second interlayer insulating layer 162.

[0893] The functional layer FL may be located on the third organic layer 183, and the cathode Cathode may be located on the third organic layer 183.

[0894] The encapsulation layer 400 is positioned on the cathode Cathode, and the sensing insulating layers 501, 510, and 511 are sequentially positioned on top of the cathode Cathode.

[0895] The encapsulation layer 400 may have a three-layer structure sequentially including a first inorganic encapsulation layer, an organic encapsulation layer, and a second inorganic encapsulation layer.

[0896] In some aspects, the sensing insulating layers 501, 510, and 511 may all be inorganic insulating layers.

[0897] The planarization layer 550 may be positioned over the sensing insulating layers 501, 510, and 511.

[0898] In the first component region EA1 described herein, the metal layer, the first semiconductor layer, the first gate conductive layer, the second gate conductive layer, the oxide semiconductor layer, the third gate conductive layer, the first data conductive layer, the second data conductive layer, and the anode are not located therein.

[0899] In some aspects, the light-emitting layer EML and the sensing electrodes 540 and 541 are not formed.

[0900] In some aspects, in the first optical sensor region OPS1 of the first component region EA1, additional openings OP-1 and OPCF-1 are formed in the pixel defining layer 380 and the light-blocking region of the color filter, respectively, such that the pixel defining layer 380 and the color filter may not be formed.

[0901] As a result, light can pass through the first optical sensor region OPS1.

[0902] In some embodiments, the second optical sensor region OPS2 of the first component region EA1 does not have the additional openings OP-1 and OPCF-1, and thus the second optical sensor region OPS2 overlaps with the light-blocking regions of the pixel defining layer 380 and the color filter, and the second optical sensor region OPS2 may have an opaque structure.

[0903] Above, embodiments have been described in which a total of three organic layers are formed and anode connection openings are formed in the second and third organic layers.

[0904] However, embodiments of the present disclosure are not limited thereto, and in another embodiment, at least two organic layers may be formed and in such an embodiment, the anode connection opening may be located in the upper organic layer positioned away from the substrate, and the lower organic layer opening may be located in the lower organic layer.

[0905] In some embodiments, additionally, if the opening OP of the pixel defining layer 380, the second opening OPBM of the light-blocking layer 220, and the second opening OPCF of the light-blocking region where at least two color filters overlap have an elliptical or oval shape, modifications as shown in Table 2 below may be possible.

[0906]

Table 2

[0907]

[0908]

[0909] Although the embodiments have been described in detail above, the scope of the present disclosure is not limited thereto, and those skilled in the art can make various modifications and improvements using the basic concepts supported by the aspects of the present disclosure defined in the claims.

Claims

1. A light-emitting display device, comprising: substrate; A plurality of anodes are disposed on the substrate; a pixel defining layer, comprising a plurality of first openings respectively overlapping the plurality of anodes; A plurality of light-emitting layers are respectively disposed in the plurality of first openings of the pixel defining layer; a cathode, disposed on the plurality of light-emitting layers and the pixel defining layer; An encapsulation layer, disposed on the cathode; as well as a light blocking layer disposed on the encapsulation layer and comprising a plurality of second openings respectively overlapping the plurality of first openings, in: The plurality of first openings of the pixel defining layer each have an elliptical shape or an oval shape, Among the plurality of first openings and the plurality of second openings, a first opening and a second opening corresponding to the first opening are different according to a major axis direction gap and a minor axis direction gap, which are horizontal gaps in a plane relative to a major axis direction and a minor axis direction of the first opening, respectively, and The major axis direction gap is smaller than the minor axis direction gap by a value in a range of 0.1 μm to 2.6 μm.

2. The light emitting display device according to claim 1, wherein: The first opening and the second opening corresponding to the first opening have a horizontal gap in an oblique direction different from the major axis direction and the minor axis direction, and The horizontal gap in the oblique direction is different from the major axis direction gap and the minor axis direction gap.

3. The light-emitting display device according to claim 1, wherein: The first opening and the second opening overlapping the first opening on the plane have a horizontal gap in the range of 0 μm to 20 μm, The second opening has a circular shape or a polygonal shape including a square shape, The elliptical shape or the oval shape of the first opening includes four or more major axis angles, and The major axis angles of the elliptical shape or the oval shape of the first opening are arranged at angular intervals of 45 degrees or less.

4. The light emitting display device according to claim 1, wherein: The elliptical shape or the oval shape of the first opening has an eccentricity in the range of 0.2 to 0.85, and The second opening has an eccentricity in the range of 0 to 0.

84.

5. The light emitting display device according to claim 1, wherein: The oval shape of the first opening is a planar shape formed by merging at least two elliptical shapes having different eccentricities, and The oval shape of the first opening is a planar shape formed by cutting a first ellipse having a first eccentricity in a first direction, cutting a second ellipse having a second eccentricity in the first direction, and combining the cut portion of the first ellipse and the cut portion of the second ellipse.

6. A light-emitting display device, comprising: substrate; A plurality of anodes are disposed on the substrate; a pixel defining layer, comprising a plurality of first openings respectively overlapping the plurality of anodes; A plurality of light-emitting layers are respectively disposed in the plurality of first openings of the pixel defining layer; a cathode, disposed on the plurality of light-emitting layers and the pixel defining layer; An encapsulation layer, disposed on the cathode; as well as A plurality of color filters, each corresponding to a different color and arranged on the encapsulation layer, in: The plurality of color filters include: at least two color filters overlapping the light blocking region; and A color filter, overlapping the light-transmitting area, The plurality of first openings of the pixel defining layer each have an elliptical shape or an oval shape, The light blocking regions of the plurality of color filters have a plurality of second openings corresponding to the light transmitting regions of the plurality of color filters, Among the plurality of first openings and the plurality of second openings, a first opening and a second opening corresponding to the first opening are different according to a major axis direction gap and a minor axis direction gap, which are horizontal gaps in a plane relative to a major axis direction and a minor axis direction of the first opening, respectively, and The major axis direction gap is smaller than the minor axis direction gap by a value in a range of 0.1 μm to 2.6 μm.

7. The light-emitting display device according to claim 6, wherein: The first opening and the second opening corresponding to the first opening have a horizontal gap in an oblique direction different from the major axis direction and the minor axis direction, and The horizontal gap in the oblique direction is different from the major axis direction gap and the minor axis direction gap.

8. The light emitting display device according to claim 6, wherein: The first opening and the second opening overlapping the first opening on the plane have a horizontal gap in the range of 0 μm to 20 μm, The second opening has a circular shape or a polygonal shape including a square shape, The elliptical shape or the oval shape of the first opening includes four or more major axis angles, and The major axis angles of the elliptical shape or the oval shape of the first opening are arranged at angular intervals of 45 degrees or less.

9. The light emitting display device according to claim 6, wherein: The elliptical shape or the oval shape of the first opening has an eccentricity in the range of 0.2 to 0.85, and The second opening has an eccentricity in the range of 0 to 0.

84.

10. The light emitting display device according to claim 6, wherein The oval shape of the first opening is a planar shape formed by merging at least two elliptical shapes having different eccentricities, and The oval shape of the first opening is a planar shape formed by cutting a first ellipse having a first eccentricity in a first direction, cutting a second ellipse having a second eccentricity in the first direction, and combining the cut portion of the first ellipse and the cut portion of the second ellipse.

Images